Question

what is the mean proportional of 4 amd 25​

Answer 1

Let us take a=4 & c= 25

proportional=b

we know the formula as, b²=ac

=>b²=(4)(25)

=>b²=100

=>b=√100

=>b=10

Hence we got that, proportional of 4 & 25 is the product of 4 & 25 is equal to the square of a no. (b²=ac).