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Finding the Fourth Proportional to 322,808.28, 445,500.12 and 179,578.92

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Solution

The fourth proportional to 322,808.28, 445,500.12 and 179,578.92 is: 247,832.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,808.28 : 445,500.12 = 179,578.92 : x
  2. Step 2: Convert to fraction form
    322,808.28/445,500.12 = 179,578.92/x
  3. Step 3: Cross multiply
    322,808.28x = 445,500.12 × 179,578.92
  4. Step 4: Simplify right side
    322,808.28x = 80,002,430,409.47
  5. Step 5: Solve for x
    x = 80,002,430,409.47/322,808.28
  6. Step 6: Final answer
    x = 247,832.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.