Home / 331,320.70-496,981.05-82,002.70

Finding the Fourth Proportional to 331,320.70, 496,981.05 and 82,002.70

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Solution

The fourth proportional to 331,320.70, 496,981.05 and 82,002.70 is: 123,004.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,320.70 : 496,981.05 = 82,002.70 : x
  2. Step 2: Convert to fraction form
    331,320.70/496,981.05 = 82,002.70/x
  3. Step 3: Cross multiply
    331,320.70x = 496,981.05 × 82,002.70
  4. Step 4: Simplify right side
    331,320.70x = 40,753,787,948.84
  5. Step 5: Solve for x
    x = 40,753,787,948.84/331,320.70
  6. Step 6: Final answer
    x = 123,004.05

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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.