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Finding the Third Proportional to 198,678.75 and 432,825

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Solution

The third proportional to 198,678.75 and 432,825 is: 942,916.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,678.75 : 432,825 = 432,825 : x
  2. Step 2: Convert to fraction form
    198,678.75/432,825 = 432,825/x
  3. Step 3: Cross multiply
    198,678.75x = 432,825 × 432,825
  4. Step 4: Simplify right side
    198,678.75x = 187,337,480,625
  5. Step 5: Solve for x
    x = 187,337,480,625/198,678.75
  6. Step 6: Final answer
    x = 942,916.55

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.