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Finding the Fourth Proportional to 206,363.43, 309,493.17 and 79,960.23

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Solution

The fourth proportional to 206,363.43, 309,493.17 and 79,960.23 is: 119,920.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,363.43 : 309,493.17 = 79,960.23 : x
  2. Step 2: Convert to fraction form
    206,363.43/309,493.17 = 79,960.23/x
  3. Step 3: Cross multiply
    206,363.43x = 309,493.17 × 79,960.23
  4. Step 4: Simplify right side
    206,363.43x = 24,747,145,056.63
  5. Step 5: Solve for x
    x = 24,747,145,056.63/206,363.43
  6. Step 6: Final answer
    x = 119,920.21

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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.