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Finding the Third Proportional to 268,870 and 412,704

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Solution

The third proportional to 268,870 and 412,704 is: 633,483.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,870 : 412,704 = 412,704 : x
  2. Step 2: Convert to fraction form
    268,870/412,704 = 412,704/x
  3. Step 3: Cross multiply
    268,870x = 412,704 × 412,704
  4. Step 4: Simplify right side
    268,870x = 170,324,591,616
  5. Step 5: Solve for x
    x = 170,324,591,616/268,870
  6. Step 6: Final answer
    x = 633,483.06

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.