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Finding the Fourth Proportional to 372.61, 557.83 and 250.65

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Solution

The fourth proportional to 372.61, 557.83 and 250.65 is: 375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372.61 : 557.83 = 250.65 : x
  2. Step 2: Convert to fraction form
    372.61/557.83 = 250.65/x
  3. Step 3: Cross multiply
    372.61x = 557.83 × 250.65
  4. Step 4: Simplify right side
    372.61x = 139,819.46
  5. Step 5: Solve for x
    x = 139,819.46/372.61
  6. Step 6: Final answer
    x = 375.25

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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.