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Finding the Fourth Proportional to 485,158.51, 727,703.65 and 181,494.73

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Solution

The fourth proportional to 485,158.51, 727,703.65 and 181,494.73 is: 272,229.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,158.51 : 727,703.65 = 181,494.73 : x
  2. Step 2: Convert to fraction form
    485,158.51/727,703.65 = 181,494.73/x
  3. Step 3: Cross multiply
    485,158.51x = 727,703.65 × 181,494.73
  4. Step 4: Simplify right side
    485,158.51x = 132,074,377,476.77
  5. Step 5: Solve for x
    x = 132,074,377,476.77/485,158.51
  6. Step 6: Final answer
    x = 272,229.33

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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.