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Finding the Third Proportional to 278,910 and 443,232

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Solution

The third proportional to 278,910 and 443,232 is: 704,365.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,910 : 443,232 = 443,232 : x
  2. Step 2: Convert to fraction form
    278,910/443,232 = 443,232/x
  3. Step 3: Cross multiply
    278,910x = 443,232 × 443,232
  4. Step 4: Simplify right side
    278,910x = 196,454,605,824
  5. Step 5: Solve for x
    x = 196,454,605,824/278,910
  6. Step 6: Final answer
    x = 704,365.59

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.