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Finding the Fourth Proportional to 224.18, 335.64 and 115.73

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Solution

The fourth proportional to 224.18, 335.64 and 115.73 is: 173.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.18 : 335.64 = 115.73 : x
  2. Step 2: Convert to fraction form
    224.18/335.64 = 115.73/x
  3. Step 3: Cross multiply
    224.18x = 335.64 × 115.73
  4. Step 4: Simplify right side
    224.18x = 38,843.62
  5. Step 5: Solve for x
    x = 38,843.62/224.18
  6. Step 6: Final answer
    x = 173.27

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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.