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Finding the Third Proportional to 86,129 and 182,683

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Solution

The third proportional to 86,129 and 182,683 is: 387,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,129 : 182,683 = 182,683 : x
  2. Step 2: Convert to fraction form
    86,129/182,683 = 182,683/x
  3. Step 3: Cross multiply
    86,129x = 182,683 × 182,683
  4. Step 4: Simplify right side
    86,129x = 33,373,078,489
  5. Step 5: Solve for x
    x = 33,373,078,489/86,129
  6. Step 6: Final answer
    x = 387,477.84

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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.