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Finding the Third Proportional to 131,247 and 203,612

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Solution

The third proportional to 131,247 and 203,612 is: 315,876.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,247 : 203,612 = 203,612 : x
  2. Step 2: Convert to fraction form
    131,247/203,612 = 203,612/x
  3. Step 3: Cross multiply
    131,247x = 203,612 × 203,612
  4. Step 4: Simplify right side
    131,247x = 41,457,846,544
  5. Step 5: Solve for x
    x = 41,457,846,544/131,247
  6. Step 6: Final answer
    x = 315,876.53

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.