Math, asked by raja4021, 1 year ago

find the mean proportional between 27 and 243

Answers

Answered by TheLostMonk
7
let the two numbers are a, b . mean proportional between two numbers is defined as ,

x / a = b / x

let a = 27 , b = 243

x / 27 = 243 / x

x × x = 27 × 243

x^2 = 6561 => x = √6561

x = 81

therefore , mean proportional between 27 and 243 is 81.

Answer : 81

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