Home / 664,377.20-996,565.80-221,145.20

Finding the Fourth Proportional to 664,377.20, 996,565.80 and 221,145.20

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Solution

The fourth proportional to 664,377.20, 996,565.80 and 221,145.20 is: 331,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,377.20 : 996,565.80 = 221,145.20 : x
  2. Step 2: Convert to fraction form
    664,377.20/996,565.80 = 221,145.20/x
  3. Step 3: Cross multiply
    664,377.20x = 996,565.80 × 221,145.20
  4. Step 4: Simplify right side
    664,377.20x = 220,385,743,154.16
  5. Step 5: Solve for x
    x = 220,385,743,154.16/664,377.20
  6. Step 6: Final answer
    x = 331,717.80

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Similar ratio
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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.