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Finding the Third Proportional to 54,686 and 117,908

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Solution

The third proportional to 54,686 and 117,908 is: 254,220.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,686 : 117,908 = 117,908 : x
  2. Step 2: Convert to fraction form
    54,686/117,908 = 117,908/x
  3. Step 3: Cross multiply
    54,686x = 117,908 × 117,908
  4. Step 4: Simplify right side
    54,686x = 13,902,296,464
  5. Step 5: Solve for x
    x = 13,902,296,464/54,686
  6. Step 6: Final answer
    x = 254,220.39

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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.