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Finding the Third Proportional to 100,812.75 and 217,374.75

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Solution

The third proportional to 100,812.75 and 217,374.75 is: 468,708.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,812.75 : 217,374.75 = 217,374.75 : x
  2. Step 2: Convert to fraction form
    100,812.75/217,374.75 = 217,374.75/x
  3. Step 3: Cross multiply
    100,812.75x = 217,374.75 × 217,374.75
  4. Step 4: Simplify right side
    100,812.75x = 47,251,781,937.56
  5. Step 5: Solve for x
    x = 47,251,781,937.56/100,812.75
  6. Step 6: Final answer
    x = 468,708.39

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.