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Finding the Third Proportional to 132,568 and 258,448

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Solution

The third proportional to 132,568 and 258,448 is: 503,857.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,568 : 258,448 = 258,448 : x
  2. Step 2: Convert to fraction form
    132,568/258,448 = 258,448/x
  3. Step 3: Cross multiply
    132,568x = 258,448 × 258,448
  4. Step 4: Simplify right side
    132,568x = 66,795,368,704
  5. Step 5: Solve for x
    x = 66,795,368,704/132,568
  6. Step 6: Final answer
    x = 503,857.41

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.