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Finding the Third Proportional to 82,209 and 176,895

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Solution

The third proportional to 82,209 and 176,895 is: 380,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,209 : 176,895 = 176,895 : x
  2. Step 2: Convert to fraction form
    82,209/176,895 = 176,895/x
  3. Step 3: Cross multiply
    82,209x = 176,895 × 176,895
  4. Step 4: Simplify right side
    82,209x = 31,291,841,025
  5. Step 5: Solve for x
    x = 31,291,841,025/82,209
  6. Step 6: Final answer
    x = 380,637.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.