Finding the Fourth Proportional to 498.66, 747.72 and 151.89

Step by Step Solution

1. Step 1: Write the proportion equation
   498.66 : 747.72 = 151.89 : x
2. Step 2: Convert to fraction form
   498.66/747.72 = 151.89/x
3. Step 3: Cross multiply
   498.66x = 747.72 × 151.89
4. Step 4: Simplify right side
   498.66x = 113,571.19
5. Step 5: Solve for x
   x = 113,571.19/498.66
6. Step 6: Final answer
   x = 227.75