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Finding the Third Proportional to 131,040 and 209,864

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Solution

The third proportional to 131,040 and 209,864 is: 336,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,040 : 209,864 = 209,864 : x
  2. Step 2: Convert to fraction form
    131,040/209,864 = 209,864/x
  3. Step 3: Cross multiply
    131,040x = 209,864 × 209,864
  4. Step 4: Simplify right side
    131,040x = 44,042,898,496
  5. Step 5: Solve for x
    x = 44,042,898,496/131,040
  6. Step 6: Final answer
    x = 336,102.71

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.