Home / 453,983.98-680,974.14-138,439.97

Finding the Fourth Proportional to 453,983.98, 680,974.14 and 138,439.97

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Solution

The fourth proportional to 453,983.98, 680,974.14 and 138,439.97 is: 207,659.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,983.98 : 680,974.14 = 138,439.97 : x
  2. Step 2: Convert to fraction form
    453,983.98/680,974.14 = 138,439.97/x
  3. Step 3: Cross multiply
    453,983.98x = 680,974.14 × 138,439.97
  4. Step 4: Simplify right side
    453,983.98x = 94,274,039,512.38
  5. Step 5: Solve for x
    x = 94,274,039,512.38/453,983.98
  6. Step 6: Final answer
    x = 207,659.40

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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.