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Finding the Fourth Proportional to 334,001.88, 500,998.56 and 81,282.78

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Solution

The fourth proportional to 334,001.88, 500,998.56 and 81,282.78 is: 121,923.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,001.88 : 500,998.56 = 81,282.78 : x
  2. Step 2: Convert to fraction form
    334,001.88/500,998.56 = 81,282.78/x
  3. Step 3: Cross multiply
    334,001.88x = 500,998.56 × 81,282.78
  4. Step 4: Simplify right side
    334,001.88x = 40,722,555,732.80
  5. Step 5: Solve for x
    x = 40,722,555,732.80/334,001.88
  6. Step 6: Final answer
    x = 121,923.13

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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.