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Finding the Fourth Proportional to 488.02, 731.39 and 372.03

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Solution

The fourth proportional to 488.02, 731.39 and 372.03 is: 557.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.02 : 731.39 = 372.03 : x
  2. Step 2: Convert to fraction form
    488.02/731.39 = 372.03/x
  3. Step 3: Cross multiply
    488.02x = 731.39 × 372.03
  4. Step 4: Simplify right side
    488.02x = 272,097.16
  5. Step 5: Solve for x
    x = 272,097.16/488.02
  6. Step 6: Final answer
    x = 557.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.