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Finding the Fourth Proportional to 454,379.33, 681,691.71 and 138,827.63

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Solution

The fourth proportional to 454,379.33, 681,691.71 and 138,827.63 is: 208,278.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,379.33 : 681,691.71 = 138,827.63 : x
  2. Step 2: Convert to fraction form
    454,379.33/681,691.71 = 138,827.63/x
  3. Step 3: Cross multiply
    454,379.33x = 681,691.71 × 138,827.63
  4. Step 4: Simplify right side
    454,379.33x = 94,637,644,489.95
  5. Step 5: Solve for x
    x = 94,637,644,489.95/454,379.33
  6. Step 6: Final answer
    x = 208,278.94

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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.