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Finding the Fourth Proportional to 250,400.73, 345,553.31 and 135,679.29

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Solution

The fourth proportional to 250,400.73, 345,553.31 and 135,679.29 is: 187,237.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,400.73 : 345,553.31 = 135,679.29 : x
  2. Step 2: Convert to fraction form
    250,400.73/345,553.31 = 135,679.29/x
  3. Step 3: Cross multiply
    250,400.73x = 345,553.31 × 135,679.29
  4. Step 4: Simplify right side
    250,400.73x = 46,884,427,757.95
  5. Step 5: Solve for x
    x = 46,884,427,757.95/250,400.73
  6. Step 6: Final answer
    x = 187,237.58

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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.