Home / 329,320.38-493,981.79-80,002.38

Finding the Fourth Proportional to 329,320.38, 493,981.79 and 80,002.38

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Solution

The fourth proportional to 329,320.38, 493,981.79 and 80,002.38 is: 120,003.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,320.38 : 493,981.79 = 80,002.38 : x
  2. Step 2: Convert to fraction form
    329,320.38/493,981.79 = 80,002.38/x
  3. Step 3: Cross multiply
    329,320.38x = 493,981.79 × 80,002.38
  4. Step 4: Simplify right side
    329,320.38x = 39,519,718,876.66
  5. Step 5: Solve for x
    x = 39,519,718,876.66/329,320.38
  6. Step 6: Final answer
    x = 120,003.87

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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.