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Finding the Fourth Proportional to 199,204.70, 298,977.15 and 80,960.90

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Solution

The fourth proportional to 199,204.70, 298,977.15 and 80,960.90 is: 121,510.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,204.70 : 298,977.15 = 80,960.90 : x
  2. Step 2: Convert to fraction form
    199,204.70/298,977.15 = 80,960.90/x
  3. Step 3: Cross multiply
    199,204.70x = 298,977.15 × 80,960.90
  4. Step 4: Simplify right side
    199,204.70x = 24,205,459,143.44
  5. Step 5: Solve for x
    x = 24,205,459,143.44/199,204.70
  6. Step 6: Final answer
    x = 121,510.48

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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.