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Finding the Third Proportional to 267,742 and 414,570

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Solution

The third proportional to 267,742 and 414,570 is: 641,917.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,742 : 414,570 = 414,570 : x
  2. Step 2: Convert to fraction form
    267,742/414,570 = 414,570/x
  3. Step 3: Cross multiply
    267,742x = 414,570 × 414,570
  4. Step 4: Simplify right side
    267,742x = 171,868,284,900
  5. Step 5: Solve for x
    x = 171,868,284,900/267,742
  6. Step 6: Final answer
    x = 641,917.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.