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Finding the Fourth Proportional to 224.34, 335.91 and 115.91

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Solution

The fourth proportional to 224.34, 335.91 and 115.91 is: 173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    224.34 : 335.91 = 115.91 : x
  2. Step 2: Convert to fraction form
    224.34/335.91 = 115.91/x
  3. Step 3: Cross multiply
    224.34x = 335.91 × 115.91
  4. Step 4: Simplify right side
    224.34x = 38,933.42
  5. Step 5: Solve for x
    x = 38,933.42/224.34
  6. Step 6: Final answer
    x = 173.54

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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.