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Finding the Third Proportional to 155,310.75 and 339,700.50

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Solution

The third proportional to 155,310.75 and 339,700.50 is: 743,003.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,310.75 : 339,700.50 = 339,700.50 : x
  2. Step 2: Convert to fraction form
    155,310.75/339,700.50 = 339,700.50/x
  3. Step 3: Cross multiply
    155,310.75x = 339,700.50 × 339,700.50
  4. Step 4: Simplify right side
    155,310.75x = 115,396,429,700.25
  5. Step 5: Solve for x
    x = 115,396,429,700.25/155,310.75
  6. Step 6: Final answer
    x = 743,003.49

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.