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Finding the Fourth Proportional to 531.28, 732.39 and 373.44

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Solution

The fourth proportional to 531.28, 732.39 and 373.44 is: 514.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.28 : 732.39 = 373.44 : x
  2. Step 2: Convert to fraction form
    531.28/732.39 = 373.44/x
  3. Step 3: Cross multiply
    531.28x = 732.39 × 373.44
  4. Step 4: Simplify right side
    531.28x = 273,500.06
  5. Step 5: Solve for x
    x = 273,500.06/531.28
  6. Step 6: Final answer
    x = 514.79

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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.