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Finding the Third Proportional to 38,908 and 86,888

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Solution

The third proportional to 38,908 and 86,888 is: 194,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,908 : 86,888 = 86,888 : x
  2. Step 2: Convert to fraction form
    38,908/86,888 = 86,888/x
  3. Step 3: Cross multiply
    38,908x = 86,888 × 86,888
  4. Step 4: Simplify right side
    38,908x = 7,549,524,544
  5. Step 5: Solve for x
    x = 7,549,524,544/38,908
  6. Step 6: Final answer
    x = 194,035.28

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.