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Finding the Third Proportional to 129,812 and 195,680

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Solution

The third proportional to 129,812 and 195,680 is: 294,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,812 : 195,680 = 195,680 : x
  2. Step 2: Convert to fraction form
    129,812/195,680 = 195,680/x
  3. Step 3: Cross multiply
    129,812x = 195,680 × 195,680
  4. Step 4: Simplify right side
    129,812x = 38,290,662,400
  5. Step 5: Solve for x
    x = 38,290,662,400/129,812
  6. Step 6: Final answer
    x = 294,970.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.