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Finding the Fourth Proportional to 154.59, 232.07 and 141.85

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Solution

The fourth proportional to 154.59, 232.07 and 141.85 is: 212.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    154.59 : 232.07 = 141.85 : x
  2. Step 2: Convert to fraction form
    154.59/232.07 = 141.85/x
  3. Step 3: Cross multiply
    154.59x = 232.07 × 141.85
  4. Step 4: Simplify right side
    154.59x = 32,919.13
  5. Step 5: Solve for x
    x = 32,919.13/154.59
  6. Step 6: Final answer
    x = 212.94

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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.