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Finding the Third Proportional to 79,912.50 and 169,680.25

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Solution

The third proportional to 79,912.50 and 169,680.25 is: 360,286.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,912.50 : 169,680.25 = 169,680.25 : x
  2. Step 2: Convert to fraction form
    79,912.50/169,680.25 = 169,680.25/x
  3. Step 3: Cross multiply
    79,912.50x = 169,680.25 × 169,680.25
  4. Step 4: Simplify right side
    79,912.50x = 28,791,387,240.06
  5. Step 5: Solve for x
    x = 28,791,387,240.06/79,912.50
  6. Step 6: Final answer
    x = 360,286.40

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.