Theo bài ra , ta có :
\(\frac{17}{111}:\frac{41}{333}=\frac{5}{4}x\)
\(\Rightarrow\frac{17}{111}.\frac{333}{41}=\frac{5}{4}x\)
\(\Rightarrow\frac{51}{41}=\frac{5}{4}x\)
\(\Rightarrow x=\frac{51}{41}:\frac{5}{4}\)
\(\Rightarrow x=\frac{51}{41}.\frac{4}{5}\)
\(\Rightarrow x=\frac{204}{205}\)
Vậy \(x=\frac{204}{205}\)