Home / 220,080.20-329,581.91-198,780.77

Finding the Fourth Proportional to 220,080.20, 329,581.91 and 198,780.77

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Solution

The fourth proportional to 220,080.20, 329,581.91 and 198,780.77 is: 297,684.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,080.20 : 329,581.91 = 198,780.77 : x
  2. Step 2: Convert to fraction form
    220,080.20/329,581.91 = 198,780.77/x
  3. Step 3: Cross multiply
    220,080.20x = 329,581.91 × 198,780.77
  4. Step 4: Simplify right side
    220,080.20x = 65,514,543,206.06
  5. Step 5: Solve for x
    x = 65,514,543,206.06/220,080.20
  6. Step 6: Final answer
    x = 297,684.87

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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.