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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:

There is one wrinkle, he adds: The pro rata rule.

From MarketWatch Apr. 9, 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

The fund will be divided among the qualified claimants on a pro rata basis, depending on how much they were overcharged by the DWP.

From Los Angeles Times Aug. 9, 2023

By this cooperative system each investor is placed on an equal footing with the largest operator and profits divided pro rata among shareholders every 30 days.

From Scientific American, Vol. XXXIX.?No. 24. [New Series.], December 14, 1878 A Weekly Journal Of Practical Information, Art, Science, Mechanics, Chemistry, And Manufactures by Various

If the person also has a large pretax SEP IRA, however, the pro-rata rule applies.

From MarketWatch Sep. 2, 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

Payment for part of a week's rehearsal shall be pro-rata.

From The Art of Stage Dancing The Story of a Beautiful and Profitable Profession by Ned Wayburn

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