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Finding the Third Proportional to 215,864 and 448,918

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Solution

The third proportional to 215,864 and 448,918 is: 933,584.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,864 : 448,918 = 448,918 : x
  2. Step 2: Convert to fraction form
    215,864/448,918 = 448,918/x
  3. Step 3: Cross multiply
    215,864x = 448,918 × 448,918
  4. Step 4: Simplify right side
    215,864x = 201,527,370,724
  5. Step 5: Solve for x
    x = 201,527,370,724/215,864
  6. Step 6: Final answer
    x = 933,584.90

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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.