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Finding the Third Proportional to 54,660 and 117,930

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Solution

The third proportional to 54,660 and 117,930 is: 254,436.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,660 : 117,930 = 117,930 : x
  2. Step 2: Convert to fraction form
    54,660/117,930 = 117,930/x
  3. Step 3: Cross multiply
    54,660x = 117,930 × 117,930
  4. Step 4: Simplify right side
    54,660x = 13,907,484,900
  5. Step 5: Solve for x
    x = 13,907,484,900/54,660
  6. Step 6: Final answer
    x = 254,436.24

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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.