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Finding the Fourth Proportional to 198,671.52, 298,007.04 and 80,341.92

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Solution

The fourth proportional to 198,671.52, 298,007.04 and 80,341.92 is: 120,512.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,671.52 : 298,007.04 = 80,341.92 : x
  2. Step 2: Convert to fraction form
    198,671.52/298,007.04 = 80,341.92/x
  3. Step 3: Cross multiply
    198,671.52x = 298,007.04 × 80,341.92
  4. Step 4: Simplify right side
    198,671.52x = 23,942,457,767.12
  5. Step 5: Solve for x
    x = 23,942,457,767.12/198,671.52
  6. Step 6: Final answer
    x = 120,512.78

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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.