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Finding the Fourth Proportional to 251.73, 375.92 and 249.02

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Solution

The fourth proportional to 251.73, 375.92 and 249.02 is: 371.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.73 : 375.92 = 249.02 : x
  2. Step 2: Convert to fraction form
    251.73/375.92 = 249.02/x
  3. Step 3: Cross multiply
    251.73x = 375.92 × 249.02
  4. Step 4: Simplify right side
    251.73x = 93,609.72
  5. Step 5: Solve for x
    x = 93,609.72/251.73
  6. Step 6: Final answer
    x = 371.87

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.