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Finding the Third Proportional to 86,991 and 184,644

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Solution

The third proportional to 86,991 and 184,644 is: 391,918.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,991 : 184,644 = 184,644 : x
  2. Step 2: Convert to fraction form
    86,991/184,644 = 184,644/x
  3. Step 3: Cross multiply
    86,991x = 184,644 × 184,644
  4. Step 4: Simplify right side
    86,991x = 34,093,406,736
  5. Step 5: Solve for x
    x = 34,093,406,736/86,991
  6. Step 6: Final answer
    x = 391,918.78

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.