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Finding the Third Proportional to 85,871 and 186,039

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Solution

The third proportional to 85,871 and 186,039 is: 403,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,871 : 186,039 = 186,039 : x
  2. Step 2: Convert to fraction form
    85,871/186,039 = 186,039/x
  3. Step 3: Cross multiply
    85,871x = 186,039 × 186,039
  4. Step 4: Simplify right side
    85,871x = 34,610,509,521
  5. Step 5: Solve for x
    x = 34,610,509,521/85,871
  6. Step 6: Final answer
    x = 403,052.36

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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.