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Finding the Third Proportional to 61,864 and 135,553

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Solution

The third proportional to 61,864 and 135,553 is: 297,016.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,864 : 135,553 = 135,553 : x
  2. Step 2: Convert to fraction form
    61,864/135,553 = 135,553/x
  3. Step 3: Cross multiply
    61,864x = 135,553 × 135,553
  4. Step 4: Simplify right side
    61,864x = 18,374,615,809
  5. Step 5: Solve for x
    x = 18,374,615,809/61,864
  6. Step 6: Final answer
    x = 297,016.29

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.