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Finding the Third Proportional to 319,162 and 485,375

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Solution

The third proportional to 319,162 and 485,375 is: 738,148.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,162 : 485,375 = 485,375 : x
  2. Step 2: Convert to fraction form
    319,162/485,375 = 485,375/x
  3. Step 3: Cross multiply
    319,162x = 485,375 × 485,375
  4. Step 4: Simplify right side
    319,162x = 235,588,890,625
  5. Step 5: Solve for x
    x = 235,588,890,625/319,162
  6. Step 6: Final answer
    x = 738,148.31

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.