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Finding the Third Proportional to 214,502 and 321,339

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Solution

The third proportional to 214,502 and 321,339 is: 481,388.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,502 : 321,339 = 321,339 : x
  2. Step 2: Convert to fraction form
    214,502/321,339 = 321,339/x
  3. Step 3: Cross multiply
    214,502x = 321,339 × 321,339
  4. Step 4: Simplify right side
    214,502x = 103,258,752,921
  5. Step 5: Solve for x
    x = 103,258,752,921/214,502
  6. Step 6: Final answer
    x = 481,388.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.