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Finding the Fourth Proportional to 206,077.70, 309,160.97 and 63,920.16

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Solution

The fourth proportional to 206,077.70, 309,160.97 and 63,920.16 is: 95,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,077.70 : 309,160.97 = 63,920.16 : x
  2. Step 2: Convert to fraction form
    206,077.70/309,160.97 = 63,920.16/x
  3. Step 3: Cross multiply
    206,077.70x = 309,160.97 × 63,920.16
  4. Step 4: Simplify right side
    206,077.70x = 19,761,618,348.55
  5. Step 5: Solve for x
    x = 19,761,618,348.55/206,077.70
  6. Step 6: Final answer
    x = 95,894.02

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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.