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Finding the Fourth Proportional to 531.98, 733.51 and 487.33

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Solution

The fourth proportional to 531.98, 733.51 and 487.33 is: 671.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.98 : 733.51 = 487.33 : x
  2. Step 2: Convert to fraction form
    531.98/733.51 = 487.33/x
  3. Step 3: Cross multiply
    531.98x = 733.51 × 487.33
  4. Step 4: Simplify right side
    531.98x = 357,458.38
  5. Step 5: Solve for x
    x = 357,458.38/531.98
  6. Step 6: Final answer
    x = 671.95

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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.