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Finding the Third Proportional to 198,150 and 306,943.50

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Solution

The third proportional to 198,150 and 306,943.50 is: 475,469.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,150 : 306,943.50 = 306,943.50 : x
  2. Step 2: Convert to fraction form
    198,150/306,943.50 = 306,943.50/x
  3. Step 3: Cross multiply
    198,150x = 306,943.50 × 306,943.50
  4. Step 4: Simplify right side
    198,150x = 94,214,312,192.25
  5. Step 5: Solve for x
    x = 94,214,312,192.25/198,150
  6. Step 6: Final answer
    x = 475,469.66

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.