The x and y ratios are
\(\dfrac{x}{y}=\dfrac{7}{4}\)

=(69 + 31)+(62+38)+(69+21)+79

=100+100+100+79

=100x3 + 79 

=300 + 79=379

= (72 + 28) + (13 + 87) + 38

= 100 + 100+38

=200+38=238