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Finding the Fourth Proportional to 361,227.50, 541,864.32 and 121,331.68

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Solution

The fourth proportional to 361,227.50, 541,864.32 and 121,331.68 is: 182,005.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,227.50 : 541,864.32 = 121,331.68 : x
  2. Step 2: Convert to fraction form
    361,227.50/541,864.32 = 121,331.68/x
  3. Step 3: Cross multiply
    361,227.50x = 541,864.32 × 121,331.68
  4. Step 4: Simplify right side
    361,227.50x = 65,745,308,277.66
  5. Step 5: Solve for x
    x = 65,745,308,277.66/361,227.50
  6. Step 6: Final answer
    x = 182,005.27

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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.