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Finding the Third Proportional to 198,478.69 and 298,167.75

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Solution

The third proportional to 198,478.69 and 298,167.75 is: 447,927.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,478.69 : 298,167.75 = 298,167.75 : x
  2. Step 2: Convert to fraction form
    198,478.69/298,167.75 = 298,167.75/x
  3. Step 3: Cross multiply
    198,478.69x = 298,167.75 × 298,167.75
  4. Step 4: Simplify right side
    198,478.69x = 88,904,007,140.06
  5. Step 5: Solve for x
    x = 88,904,007,140.06/198,478.69
  6. Step 6: Final answer
    x = 447,927.22

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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.