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Finding the Fourth Proportional to 453,862.20, 680,793.30 and 138,278.10

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Solution

The fourth proportional to 453,862.20, 680,793.30 and 138,278.10 is: 207,417.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,862.20 : 680,793.30 = 138,278.10 : x
  2. Step 2: Convert to fraction form
    453,862.20/680,793.30 = 138,278.10/x
  3. Step 3: Cross multiply
    453,862.20x = 680,793.30 × 138,278.10
  4. Step 4: Simplify right side
    453,862.20x = 94,138,804,016.73
  5. Step 5: Solve for x
    x = 94,138,804,016.73/453,862.20
  6. Step 6: Final answer
    x = 207,417.15

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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.