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Finding the Third Proportional to 135,448 and 291,708

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Solution

The third proportional to 135,448 and 291,708 is: 628,237.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,448 : 291,708 = 291,708 : x
  2. Step 2: Convert to fraction form
    135,448/291,708 = 291,708/x
  3. Step 3: Cross multiply
    135,448x = 291,708 × 291,708
  4. Step 4: Simplify right side
    135,448x = 85,093,557,264
  5. Step 5: Solve for x
    x = 85,093,557,264/135,448
  6. Step 6: Final answer
    x = 628,237.83

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.