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Finding the Third Proportional to 156,340.50 and 318,217.50

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Solution

The third proportional to 156,340.50 and 318,217.50 is: 647,704.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,340.50 : 318,217.50 = 318,217.50 : x
  2. Step 2: Convert to fraction form
    156,340.50/318,217.50 = 318,217.50/x
  3. Step 3: Cross multiply
    156,340.50x = 318,217.50 × 318,217.50
  4. Step 4: Simplify right side
    156,340.50x = 101,262,377,306.25
  5. Step 5: Solve for x
    x = 101,262,377,306.25/156,340.50
  6. Step 6: Final answer
    x = 647,704.06

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.