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Finding the Fourth Proportional to 251.11, 345.97 and 237.88

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Solution

The fourth proportional to 251.11, 345.97 and 237.88 is: 327.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.11 : 345.97 = 237.88 : x
  2. Step 2: Convert to fraction form
    251.11/345.97 = 237.88/x
  3. Step 3: Cross multiply
    251.11x = 345.97 × 237.88
  4. Step 4: Simplify right side
    251.11x = 82,299.34
  5. Step 5: Solve for x
    x = 82,299.34/251.11
  6. Step 6: Final answer
    x = 327.74

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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.