Home / 453,489.03-680,209.25-137,921.33

Finding the Fourth Proportional to 453,489.03, 680,209.25 and 137,921.33

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Solution

The fourth proportional to 453,489.03, 680,209.25 and 137,921.33 is: 206,874.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,489.03 : 680,209.25 = 137,921.33 : x
  2. Step 2: Convert to fraction form
    453,489.03/680,209.25 = 137,921.33/x
  3. Step 3: Cross multiply
    453,489.03x = 680,209.25 × 137,921.33
  4. Step 4: Simplify right side
    453,489.03x = 93,815,365,449.22
  5. Step 5: Solve for x
    x = 93,815,365,449.22/453,489.03
  6. Step 6: Final answer
    x = 206,874.61

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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.