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Finding the Fourth Proportional to 372.52, 514.10 and 217.32

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Solution

The fourth proportional to 372.52, 514.10 and 217.32 is: 299.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.52 : 514.10 = 217.32 : x
  2. Step 2: Convert to fraction form
    372.52/514.10 = 217.32/x
  3. Step 3: Cross multiply
    372.52x = 514.10 × 217.32
  4. Step 4: Simplify right side
    372.52x = 111,724.21
  5. Step 5: Solve for x
    x = 111,724.21/372.52
  6. Step 6: Final answer
    x = 299.91

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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.