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Finding the Fourth Proportional to 250,613.04, 345,850.92 and 137,442

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Solution

The fourth proportional to 250,613.04, 345,850.92 and 137,442 is: 189,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,613.04 : 345,850.92 = 137,442 : x
  2. Step 2: Convert to fraction form
    250,613.04/345,850.92 = 137,442/x
  3. Step 3: Cross multiply
    250,613.04x = 345,850.92 × 137,442
  4. Step 4: Simplify right side
    250,613.04x = 47,534,442,146.64
  5. Step 5: Solve for x
    x = 47,534,442,146.64/250,613.04
  6. Step 6: Final answer
    x = 189,672.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.