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Finding the Fourth Proportional to 154,460.70, 231,691.05 and 65,717.10

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Solution

The fourth proportional to 154,460.70, 231,691.05 and 65,717.10 is: 98,575.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,460.70 : 231,691.05 = 65,717.10 : x
  2. Step 2: Convert to fraction form
    154,460.70/231,691.05 = 65,717.10/x
  3. Step 3: Cross multiply
    154,460.70x = 231,691.05 × 65,717.10
  4. Step 4: Simplify right side
    154,460.70x = 15,226,063,901.96
  5. Step 5: Solve for x
    x = 15,226,063,901.96/154,460.70
  6. Step 6: Final answer
    x = 98,575.65

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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.