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Finding the Fourth Proportional to 181,324.80, 271,857.60 and 81,403.20

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Solution

The fourth proportional to 181,324.80, 271,857.60 and 81,403.20 is: 122,046.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,324.80 : 271,857.60 = 81,403.20 : x
  2. Step 2: Convert to fraction form
    181,324.80/271,857.60 = 81,403.20/x
  3. Step 3: Cross multiply
    181,324.80x = 271,857.60 × 81,403.20
  4. Step 4: Simplify right side
    181,324.80x = 22,130,078,584.32
  5. Step 5: Solve for x
    x = 22,130,078,584.32/181,324.80
  6. Step 6: Final answer
    x = 122,046.62

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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.