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Finding the Third Proportional to 222,257 and 479,259

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Solution

The third proportional to 222,257 and 479,259 is: 1,033,439.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,257 : 479,259 = 479,259 : x
  2. Step 2: Convert to fraction form
    222,257/479,259 = 479,259/x
  3. Step 3: Cross multiply
    222,257x = 479,259 × 479,259
  4. Step 4: Simplify right side
    222,257x = 229,689,189,081
  5. Step 5: Solve for x
    x = 229,689,189,081/222,257
  6. Step 6: Final answer
    x = 1,033,439.62

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.