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Finding the Third Proportional to 40,205 and 87,908

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Solution

The third proportional to 40,205 and 87,908 is: 192,210.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,205 : 87,908 = 87,908 : x
  2. Step 2: Convert to fraction form
    40,205/87,908 = 87,908/x
  3. Step 3: Cross multiply
    40,205x = 87,908 × 87,908
  4. Step 4: Simplify right side
    40,205x = 7,727,816,464
  5. Step 5: Solve for x
    x = 7,727,816,464/40,205
  6. Step 6: Final answer
    x = 192,210.33

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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.