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Finding the Third Proportional to 212,884 and 319,357

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Solution

The third proportional to 212,884 and 319,357 is: 479,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,884 : 319,357 = 319,357 : x
  2. Step 2: Convert to fraction form
    212,884/319,357 = 319,357/x
  3. Step 3: Cross multiply
    212,884x = 319,357 × 319,357
  4. Step 4: Simplify right side
    212,884x = 101,988,893,449
  5. Step 5: Solve for x
    x = 101,988,893,449/212,884
  6. Step 6: Final answer
    x = 479,082.00

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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.