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Finding the Third Proportional to 318,934.50 and 513,882

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Solution

The third proportional to 318,934.50 and 513,882 is: 827,990.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,934.50 : 513,882 = 513,882 : x
  2. Step 2: Convert to fraction form
    318,934.50/513,882 = 513,882/x
  3. Step 3: Cross multiply
    318,934.50x = 513,882 × 513,882
  4. Step 4: Simplify right side
    318,934.50x = 264,074,709,924
  5. Step 5: Solve for x
    x = 264,074,709,924/318,934.50
  6. Step 6: Final answer
    x = 827,990.42

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.