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Finding the Fourth Proportional to 181,292, 271,743.60 and 87,591.20

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Solution

The fourth proportional to 181,292, 271,743.60 and 87,591.20 is: 131,292.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,292 : 271,743.60 = 87,591.20 : x
  2. Step 2: Convert to fraction form
    181,292/271,743.60 = 87,591.20/x
  3. Step 3: Cross multiply
    181,292x = 271,743.60 × 87,591.20
  4. Step 4: Simplify right side
    181,292x = 23,802,348,016.32
  5. Step 5: Solve for x
    x = 23,802,348,016.32/181,292
  6. Step 6: Final answer
    x = 131,292.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.