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Finding the Fourth Proportional to 250,572, 345,789.38 and 137,397.18

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Solution

The fourth proportional to 250,572, 345,789.38 and 137,397.18 is: 189,608.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,572 : 345,789.38 = 137,397.18 : x
  2. Step 2: Convert to fraction form
    250,572/345,789.38 = 137,397.18/x
  3. Step 3: Cross multiply
    250,572x = 345,789.38 × 137,397.18
  4. Step 4: Simplify right side
    250,572x = 47,510,486,029.44
  5. Step 5: Solve for x
    x = 47,510,486,029.44/250,572
  6. Step 6: Final answer
    x = 189,608.12

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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.