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Finding the Third Proportional to 215,292 and 439,344

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Solution

The third proportional to 215,292 and 439,344 is: 896,564.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,292 : 439,344 = 439,344 : x
  2. Step 2: Convert to fraction form
    215,292/439,344 = 439,344/x
  3. Step 3: Cross multiply
    215,292x = 439,344 × 439,344
  4. Step 4: Simplify right side
    215,292x = 193,023,150,336
  5. Step 5: Solve for x
    x = 193,023,150,336/215,292
  6. Step 6: Final answer
    x = 896,564.43

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.