Home / 664,372.20-996,558.30-221,140.20

Finding the Fourth Proportional to 664,372.20, 996,558.30 and 221,140.20

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Solution

The fourth proportional to 664,372.20, 996,558.30 and 221,140.20 is: 331,710.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,372.20 : 996,558.30 = 221,140.20 : x
  2. Step 2: Convert to fraction form
    664,372.20/996,558.30 = 221,140.20/x
  3. Step 3: Cross multiply
    664,372.20x = 996,558.30 × 221,140.20
  4. Step 4: Simplify right side
    664,372.20x = 220,379,101,773.66
  5. Step 5: Solve for x
    x = 220,379,101,773.66/664,372.20
  6. Step 6: Final answer
    x = 331,710.30

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Double scale
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Similar ratio
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1.5x scale

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.