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Finding the Fourth Proportional to 154,652.65, 231,979.10 and 42,333.80

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Solution

The fourth proportional to 154,652.65, 231,979.10 and 42,333.80 is: 63,500.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,652.65 : 231,979.10 = 42,333.80 : x
  2. Step 2: Convert to fraction form
    154,652.65/231,979.10 = 42,333.80/x
  3. Step 3: Cross multiply
    154,652.65x = 231,979.10 × 42,333.80
  4. Step 4: Simplify right side
    154,652.65x = 9,820,555,452.02
  5. Step 5: Solve for x
    x = 9,820,555,452.02/154,652.65
  6. Step 6: Final answer
    x = 63,500.73

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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.