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Finding the Fourth Proportional to 269,659, 372,129.42 and 150,427

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Solution

The fourth proportional to 269,659, 372,129.42 and 150,427 is: 207,589.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,659 : 372,129.42 = 150,427 : x
  2. Step 2: Convert to fraction form
    269,659/372,129.42 = 150,427/x
  3. Step 3: Cross multiply
    269,659x = 372,129.42 × 150,427
  4. Step 4: Simplify right side
    269,659x = 55,978,312,262.34
  5. Step 5: Solve for x
    x = 55,978,312,262.34/269,659
  6. Step 6: Final answer
    x = 207,589.26

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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.