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Finding the Third Proportional to 77,682 and 169,895

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Solution

The third proportional to 77,682 and 169,895 is: 371,570.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,682 : 169,895 = 169,895 : x
  2. Step 2: Convert to fraction form
    77,682/169,895 = 169,895/x
  3. Step 3: Cross multiply
    77,682x = 169,895 × 169,895
  4. Step 4: Simplify right side
    77,682x = 28,864,311,025
  5. Step 5: Solve for x
    x = 28,864,311,025/77,682
  6. Step 6: Final answer
    x = 371,570.13

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.