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Finding the Fourth Proportional to 375.52, 517.72 and 270.52

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Solution

The fourth proportional to 375.52, 517.72 and 270.52 is: 372.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    375.52 : 517.72 = 270.52 : x
  2. Step 2: Convert to fraction form
    375.52/517.72 = 270.52/x
  3. Step 3: Cross multiply
    375.52x = 517.72 × 270.52
  4. Step 4: Simplify right side
    375.52x = 140,053.61
  5. Step 5: Solve for x
    x = 140,053.61/375.52
  6. Step 6: Final answer
    x = 372.96

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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.