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  • pro rata
    pro rata
    adverb
    in proportion; according to a certain rate.
  • pro-rata
    pro-rata
    adjective
    proportionately determined.
Synonyms

pro rata

1 American  
[proh rey-tuh, rah-] / proʊ ˈreɪ tə, ˈrɑ- /

adverb

  1. in proportion; according to a certain rate.


pro-rata 2 American  
[proh-rey-tuh, -rah-] / proʊˈreɪ tə, -ˈrɑ- /

adjective

  1. proportionately determined.

    a pro-rata share of income.


pro rata British  
/ ˈprəʊ ˈrɑːtə /
  1. in proportion

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of pro rata

First recorded in 1565–75, pro rata is from Medieval Latin prō ratā

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

First is avoiding the pro rata rule for Roth conversions.

From MarketWatch Aug. 29, 2026

Burdis says it is possible that redemption requests at some might exceed the threshold of 5% of assets, after which Blue Owl is allowed to only honor them partially, in a pro rata fashion.

From Barron's Dec. 10, 2025

In that case, you’d only owe pro rata rent through the date when you vacate the unit and a landlord couldn’t charge you any fines or fees for terminating the lease.

From Seattle Times Feb. 20, 2024

“For every dollar a team spent over that threshold, Activision would fine the team one dollar and distribute the collected sum pro rata to all non-offending teams in the league.”

From Los Angeles Times Apr. 3, 2023

To break in this machinery, a small pro rata of provisions, based upon the number of men on strike, was sent to each place.

From The Great Steel Strike and its Lessons by William Z. Foster

But it would also eliminate my ability to make an age 50 catch-up contribution to that plan, reduce my contribution flexibility and bring the pretax balance into the IRA pro-rata calculation.

From MarketWatch Sep. 2, 2026

Upon completion of the separation, shareholders will receive a pro-rata distribution of the new company’s shares.

From The Wall Street Journal Aug. 14, 2026

Spotify uses a pro-rata model to pay artists from a central pot of income derived from subscriptions and advertising.

From Barron's Nov. 4, 2025

The capital raise consists of a A$589 million 1 for 1.65 pro-rata accelerated non-renounceable entitlement offer and a A$161 million institutional placement, according to a statement.

From Reuters Sep. 25, 2023

A wage that is amply a "living wage" when used as a pro-rata contribution to an American family income is frequently insufficient for the girl living "independently."

From Modern Economic Problems Economics Volume II by Frank Albert Fetter

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