Question

find the mean proportional between 144 and 225

Answer 1

if "a" and "b" are two numbers then mean proportional between "a " and "b" will be ,

x /a = b / x

here, a = 144 ,b = 225

x / 144 = 225 / x

x × x = 144 × 225

x^2 =144 × 225

x = √(144×225)

x = √144 × √225

x = 12 × 15

x = 180 ( required Number )

hope it helps !

Answer 2

required answer=√(144×225),

required answer=√144 × √225,

required answer=12×15=180