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Finding the Third Proportional to 295,839 and 451,129.50

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Solution

The third proportional to 295,839 and 451,129.50 is: 687,934.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,839 : 451,129.50 = 451,129.50 : x
  2. Step 2: Convert to fraction form
    295,839/451,129.50 = 451,129.50/x
  3. Step 3: Cross multiply
    295,839x = 451,129.50 × 451,129.50
  4. Step 4: Simplify right side
    295,839x = 203,517,825,770.25
  5. Step 5: Solve for x
    x = 203,517,825,770.25/295,839
  6. Step 6: Final answer
    x = 687,934.40

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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.