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Finding the Third Proportional to 91,285 and 196,151

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Solution

The third proportional to 91,285 and 196,151 is: 421,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,285 : 196,151 = 196,151 : x
  2. Step 2: Convert to fraction form
    91,285/196,151 = 196,151/x
  3. Step 3: Cross multiply
    91,285x = 196,151 × 196,151
  4. Step 4: Simplify right side
    91,285x = 38,475,214,801
  5. Step 5: Solve for x
    x = 38,475,214,801/91,285
  6. Step 6: Final answer
    x = 421,484.52

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.