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Finding the Third Proportional to 54,281 and 117,855

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Solution

The third proportional to 54,281 and 117,855 is: 255,886.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,281 : 117,855 = 117,855 : x
  2. Step 2: Convert to fraction form
    54,281/117,855 = 117,855/x
  3. Step 3: Cross multiply
    54,281x = 117,855 × 117,855
  4. Step 4: Simplify right side
    54,281x = 13,889,801,025
  5. Step 5: Solve for x
    x = 13,889,801,025/54,281
  6. Step 6: Final answer
    x = 255,886.98

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.