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Finding the Third Proportional to 215,314 and 441,373

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Solution

The third proportional to 215,314 and 441,373 is: 904,772.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,314 : 441,373 = 441,373 : x
  2. Step 2: Convert to fraction form
    215,314/441,373 = 441,373/x
  3. Step 3: Cross multiply
    215,314x = 441,373 × 441,373
  4. Step 4: Simplify right side
    215,314x = 194,810,125,129
  5. Step 5: Solve for x
    x = 194,810,125,129/215,314
  6. Step 6: Final answer
    x = 904,772.22

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.