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Finding the Third Proportional to 100,770 and 217,092

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Solution

The third proportional to 100,770 and 217,092 is: 467,688.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,770 : 217,092 = 217,092 : x
  2. Step 2: Convert to fraction form
    100,770/217,092 = 217,092/x
  3. Step 3: Cross multiply
    100,770x = 217,092 × 217,092
  4. Step 4: Simplify right side
    100,770x = 47,128,936,464
  5. Step 5: Solve for x
    x = 47,128,936,464/100,770
  6. Step 6: Final answer
    x = 467,688.17

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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.