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Finding the Third Proportional to 200,491 and 417,568

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Solution

The third proportional to 200,491 and 417,568 is: 869,680.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,491 : 417,568 = 417,568 : x
  2. Step 2: Convert to fraction form
    200,491/417,568 = 417,568/x
  3. Step 3: Cross multiply
    200,491x = 417,568 × 417,568
  4. Step 4: Simplify right side
    200,491x = 174,363,034,624
  5. Step 5: Solve for x
    x = 174,363,034,624/200,491
  6. Step 6: Final answer
    x = 869,680.11

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.