Home / 331,320.20-496,980.30-82,002.20

Finding the Fourth Proportional to 331,320.20, 496,980.30 and 82,002.20

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Solution

The fourth proportional to 331,320.20, 496,980.30 and 82,002.20 is: 123,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,320.20 : 496,980.30 = 82,002.20 : x
  2. Step 2: Convert to fraction form
    331,320.20/496,980.30 = 82,002.20/x
  3. Step 3: Cross multiply
    331,320.20x = 496,980.30 × 82,002.20
  4. Step 4: Simplify right side
    331,320.20x = 40,753,477,956.66
  5. Step 5: Solve for x
    x = 40,753,477,956.66/331,320.20
  6. Step 6: Final answer
    x = 123,003.30

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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.