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Finding the Fourth Proportional to 361,877.73, 542,658.89 and 121,946.91

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Solution

The fourth proportional to 361,877.73, 542,658.89 and 121,946.91 is: 182,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,877.73 : 542,658.89 = 121,946.91 : x
  2. Step 2: Convert to fraction form
    361,877.73/542,658.89 = 121,946.91/x
  3. Step 3: Cross multiply
    361,877.73x = 542,658.89 × 121,946.91
  4. Step 4: Simplify right side
    361,877.73x = 66,175,574,209.80
  5. Step 5: Solve for x
    x = 66,175,574,209.80/361,877.73
  6. Step 6: Final answer
    x = 182,867.22

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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.