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Finding the Fourth Proportional to 371.14, 557.02 and 249.55

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Solution

The fourth proportional to 371.14, 557.02 and 249.55 is: 374.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.14 : 557.02 = 249.55 : x
  2. Step 2: Convert to fraction form
    371.14/557.02 = 249.55/x
  3. Step 3: Cross multiply
    371.14x = 557.02 × 249.55
  4. Step 4: Simplify right side
    371.14x = 139,001.56
  5. Step 5: Solve for x
    x = 139,001.56/371.14
  6. Step 6: Final answer
    x = 374.53

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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.