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Finding the Third Proportional to 131,190 and 196,811

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Solution

The third proportional to 131,190 and 196,811 is: 295,255.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,190 : 196,811 = 196,811 : x
  2. Step 2: Convert to fraction form
    131,190/196,811 = 196,811/x
  3. Step 3: Cross multiply
    131,190x = 196,811 × 196,811
  4. Step 4: Simplify right side
    131,190x = 38,734,569,721
  5. Step 5: Solve for x
    x = 38,734,569,721/131,190
  6. Step 6: Final answer
    x = 295,255.51

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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.