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Finding the Third Proportional to 207,769 and 455,087

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Solution

The third proportional to 207,769 and 455,087 is: 996,800.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,769 : 455,087 = 455,087 : x
  2. Step 2: Convert to fraction form
    207,769/455,087 = 455,087/x
  3. Step 3: Cross multiply
    207,769x = 455,087 × 455,087
  4. Step 4: Simplify right side
    207,769x = 207,104,177,569
  5. Step 5: Solve for x
    x = 207,104,177,569/207,769
  6. Step 6: Final answer
    x = 996,800.18

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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.