Finding the Fourth Proportional to 355.82, 532.83 and 225.42

Step by Step Solution

1. Step 1: Write the proportion equation
   355.82 : 532.83 = 225.42 : x
2. Step 2: Convert to fraction form
   355.82/532.83 = 225.42/x
3. Step 3: Cross multiply
   355.82x = 532.83 × 225.42
4. Step 4: Simplify right side
   355.82x = 120,109.69
5. Step 5: Solve for x
   x = 120,109.69/355.82
6. Step 6: Final answer
   x = 337.56