Home / 331,282.20-496,923.30-81,964.20

Finding the Fourth Proportional to 331,282.20, 496,923.30 and 81,964.20

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Solution

The fourth proportional to 331,282.20, 496,923.30 and 81,964.20 is: 122,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,282.20 : 496,923.30 = 81,964.20 : x
  2. Step 2: Convert to fraction form
    331,282.20/496,923.30 = 81,964.20/x
  3. Step 3: Cross multiply
    331,282.20x = 496,923.30 × 81,964.20
  4. Step 4: Simplify right side
    331,282.20x = 40,729,920,745.86
  5. Step 5: Solve for x
    x = 40,729,920,745.86/331,282.20
  6. Step 6: Final answer
    x = 122,946.30

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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.