Question

Find the value of x:-

If 3, 15, 30 and x are in proportion​

Answer 1

Step-by-step explanation:

3:15::30×x

3×X ::15×30

3x ::450

x=450

3

X =150

Answer 2

Step-by-step explanation:

=>3:15 :: 30:x

$3 \times x = 15 \times 30 \\ 3x = 450 \\ x = \frac{450}{3} \\ x = 150 \: ans$

$product \: of \: extremes = product \: of \: means \:$