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Finding the Fourth Proportional to 151.38, 226.86 and 131.04

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Solution

The fourth proportional to 151.38, 226.86 and 131.04 is: 196.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.38 : 226.86 = 131.04 : x
  2. Step 2: Convert to fraction form
    151.38/226.86 = 131.04/x
  3. Step 3: Cross multiply
    151.38x = 226.86 × 131.04
  4. Step 4: Simplify right side
    151.38x = 29,727.73
  5. Step 5: Solve for x
    x = 29,727.73/151.38
  6. Step 6: Final answer
    x = 196.38

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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.