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Finding the Fourth Proportional to 206,960.90, 310,198.35 and 204,744.74

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Solution

The fourth proportional to 206,960.90, 310,198.35 and 204,744.74 is: 306,876.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,960.90 : 310,198.35 = 204,744.74 : x
  2. Step 2: Convert to fraction form
    206,960.90/310,198.35 = 204,744.74/x
  3. Step 3: Cross multiply
    206,960.90x = 310,198.35 × 204,744.74
  4. Step 4: Simplify right side
    206,960.90x = 63,511,480,519.18
  5. Step 5: Solve for x
    x = 63,511,480,519.18/206,960.90
  6. Step 6: Final answer
    x = 306,876.71

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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.