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Finding the Third Proportional to 268,740 and 406,134

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Solution

The third proportional to 268,740 and 406,134 is: 613,771.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,740 : 406,134 = 406,134 : x
  2. Step 2: Convert to fraction form
    268,740/406,134 = 406,134/x
  3. Step 3: Cross multiply
    268,740x = 406,134 × 406,134
  4. Step 4: Simplify right side
    268,740x = 164,944,825,956
  5. Step 5: Solve for x
    x = 164,944,825,956/268,740
  6. Step 6: Final answer
    x = 613,771.03

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.