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Finding the Fourth Proportional to 252.97, 377.49 and 227.12

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Solution

The fourth proportional to 252.97, 377.49 and 227.12 is: 338.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    252.97 : 377.49 = 227.12 : x
  2. Step 2: Convert to fraction form
    252.97/377.49 = 227.12/x
  3. Step 3: Cross multiply
    252.97x = 377.49 × 227.12
  4. Step 4: Simplify right side
    252.97x = 85,736.62
  5. Step 5: Solve for x
    x = 85,736.62/252.97
  6. Step 6: Final answer
    x = 338.92

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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.