Select the option that is related to the fourth number in the same way as the first number is related to the second number and the fifth number is related to the sixth number.

19 : 362 : : ? : 442 : : 17 : 290

21

19 : 362 : : ? : 442 : : 17 : 290

The logic followed here is :

Ist number² + 1 = IInd number

As

19² + 1

361 + 1 = 362

And

17² + 1

289 + 1 = 290

Similarly

X² + 1= 442

X² = 442 - 1

X² = 441

X = 21