Home / 664,218.80-996,328.20-214,972.55

Finding the Fourth Proportional to 664,218.80, 996,328.20 and 214,972.55

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Solution

The fourth proportional to 664,218.80, 996,328.20 and 214,972.55 is: 322,458.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,218.80 : 996,328.20 = 214,972.55 : x
  2. Step 2: Convert to fraction form
    664,218.80/996,328.20 = 214,972.55/x
  3. Step 3: Cross multiply
    664,218.80x = 996,328.20 × 214,972.55
  4. Step 4: Simplify right side
    664,218.80x = 214,183,213,790.91
  5. Step 5: Solve for x
    x = 214,183,213,790.91/664,218.80
  6. Step 6: Final answer
    x = 322,458.83

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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.