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Finding the Fourth Proportional to 531.48, 733.05 and 356.88

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Solution

The fourth proportional to 531.48, 733.05 and 356.88 is: 492.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.48 : 733.05 = 356.88 : x
  2. Step 2: Convert to fraction form
    531.48/733.05 = 356.88/x
  3. Step 3: Cross multiply
    531.48x = 733.05 × 356.88
  4. Step 4: Simplify right side
    531.48x = 261,610.88
  5. Step 5: Solve for x
    x = 261,610.88/531.48
  6. Step 6: Final answer
    x = 492.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.