Verified Answer :

AL2006

' 45% ' means ' 0.45 ' .
' of ' means ' times '.

                                               0.45 times 'x'  = 200

Divide each side by 0.45 :                       x  =  200/0.45 

                                                                   x  =  444 and 4/9 .    

45% of x=200
(45/100)x=200
x=(200100) / 45=444.4444....≈444.44


Answer: x=444.44

To check
45% of  444.44=0.45
444.44≈200