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Finding the Fourth Proportional to 232.74, 349.11 and 211.86

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Solution

The fourth proportional to 232.74, 349.11 and 211.86 is: 317.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.74 : 349.11 = 211.86 : x
  2. Step 2: Convert to fraction form
    232.74/349.11 = 211.86/x
  3. Step 3: Cross multiply
    232.74x = 349.11 × 211.86
  4. Step 4: Simplify right side
    232.74x = 73,962.44
  5. Step 5: Solve for x
    x = 73,962.44/232.74
  6. Step 6: Final answer
    x = 317.79

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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.