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Finding the Fourth Proportional to 531.52, 733.44 and 383.92

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Solution

The fourth proportional to 531.52, 733.44 and 383.92 is: 529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.52 : 733.44 = 383.92 : x
  2. Step 2: Convert to fraction form
    531.52/733.44 = 383.92/x
  3. Step 3: Cross multiply
    531.52x = 733.44 × 383.92
  4. Step 4: Simplify right side
    531.52x = 281,582.28
  5. Step 5: Solve for x
    x = 281,582.28/531.52
  6. Step 6: Final answer
    x = 529.77

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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.