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Finding the Third Proportional to 198,600 and 306,756

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Solution

The third proportional to 198,600 and 306,756 is: 473,812.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,600 : 306,756 = 306,756 : x
  2. Step 2: Convert to fraction form
    198,600/306,756 = 306,756/x
  3. Step 3: Cross multiply
    198,600x = 306,756 × 306,756
  4. Step 4: Simplify right side
    198,600x = 94,099,243,536
  5. Step 5: Solve for x
    x = 94,099,243,536/198,600
  6. Step 6: Final answer
    x = 473,812.91

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.