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Finding the Fourth Proportional to 250,387.73, 345,532.13 and 135,664.13

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Solution

The fourth proportional to 250,387.73, 345,532.13 and 135,664.13 is: 187,214.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,387.73 : 345,532.13 = 135,664.13 : x
  2. Step 2: Convert to fraction form
    250,387.73/345,532.13 = 135,664.13/x
  3. Step 3: Cross multiply
    250,387.73x = 345,532.13 × 135,664.13
  4. Step 4: Simplify right side
    250,387.73x = 46,876,315,125.18
  5. Step 5: Solve for x
    x = 46,876,315,125.18/250,387.73
  6. Step 6: Final answer
    x = 187,214.91

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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.