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Finding the Fourth Proportional to 151.12, 225.39 and 132.96

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Solution

The fourth proportional to 151.12, 225.39 and 132.96 is: 198.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    151.12 : 225.39 = 132.96 : x
  2. Step 2: Convert to fraction form
    151.12/225.39 = 132.96/x
  3. Step 3: Cross multiply
    151.12x = 225.39 × 132.96
  4. Step 4: Simplify right side
    151.12x = 29,967.85
  5. Step 5: Solve for x
    x = 29,967.85/151.12
  6. Step 6: Final answer
    x = 198.31

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.