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Finding the Fourth Proportional to 530.28, 731.01 and 372.43

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Solution

The fourth proportional to 530.28, 731.01 and 372.43 is: 513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.28 : 731.01 = 372.43 : x
  2. Step 2: Convert to fraction form
    530.28/731.01 = 372.43/x
  3. Step 3: Cross multiply
    530.28x = 731.01 × 372.43
  4. Step 4: Simplify right side
    530.28x = 272,252.36
  5. Step 5: Solve for x
    x = 272,252.36/530.28
  6. Step 6: Final answer
    x = 513.41

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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.