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Finding the Fourth Proportional to 532.10, 733.77 and 391.97

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Solution

The fourth proportional to 532.10, 733.77 and 391.97 is: 540.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.10 : 733.77 = 391.97 : x
  2. Step 2: Convert to fraction form
    532.10/733.77 = 391.97/x
  3. Step 3: Cross multiply
    532.10x = 733.77 × 391.97
  4. Step 4: Simplify right side
    532.10x = 287,612.16
  5. Step 5: Solve for x
    x = 287,612.16/532.10
  6. Step 6: Final answer
    x = 540.53

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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.