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Finding the Fourth Proportional to 151.13, 226.91 and 115.97

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Solution

The fourth proportional to 151.13, 226.91 and 115.97 is: 174.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.13 : 226.91 = 115.97 : x
  2. Step 2: Convert to fraction form
    151.13/226.91 = 115.97/x
  3. Step 3: Cross multiply
    151.13x = 226.91 × 115.97
  4. Step 4: Simplify right side
    151.13x = 26,313.91
  5. Step 5: Solve for x
    x = 26,313.91/151.13
  6. Step 6: Final answer
    x = 174.11

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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.