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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 ray-tuh, rah-] / proʊ ˈreɪ tə, ˈrɑ- /

adverb

  1. in proportion; according to a certain rate.


pro-rata 2 American  
[proh-ray-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:

Informa’s largest institutional shareholder plans to take part in the placing on a pro rata basis, the group said.

From The Wall Street Journal ● Oct. 6, 2026

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

The insurers are assessed pro rata based on their market share.

From Los Angeles Times ● Feb. 11, 2025

The rest of you can vote it as you choose: divide the proxies pro rata, based on your individual holdings.

From Astounding Stories of Super-Science, November, 1930 by Various

The pro-rata portion that is tax-free is calculated on Form 8606 every year a distribution is made, regardless of your age, as long as there are after-tax funds in any IRA you own.

From MarketWatch ● Apr. 20, 2026

Upon its completion, shareholders of Madison Square Garden Sports’ Class A and Class B common stocks would receive a pro-rata distribution of 100% of the common stock of the newly created public company.

From The Wall Street Journal ● Feb. 18, 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

On a pro-rata basis, Northern Ireland’s five games would equate to £255m of an economic impact.

From BBC ● May 23, 2024

Accumulations of wealth in market centers tempts the ambitious and the adventurous to enter the rat-race and grab more than their pro-rata share of the honey.

From Civilization and Beyond Learning from History by Scott Nearing

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