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Finding the Fourth Proportional to 532.86, 735.12 and 385.62

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Solution

The fourth proportional to 532.86, 735.12 and 385.62 is: 531.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    532.86 : 735.12 = 385.62 : x
  2. Step 2: Convert to fraction form
    532.86/735.12 = 385.62/x
  3. Step 3: Cross multiply
    532.86x = 735.12 × 385.62
  4. Step 4: Simplify right side
    532.86x = 283,476.97
  5. Step 5: Solve for x
    x = 283,476.97/532.86
  6. Step 6: Final answer
    x = 531.99

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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.