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Finding the Third Proportional to 155,718 and 340,512.75

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Solution

The third proportional to 155,718 and 340,512.75 is: 744,608.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,718 : 340,512.75 = 340,512.75 : x
  2. Step 2: Convert to fraction form
    155,718/340,512.75 = 340,512.75/x
  3. Step 3: Cross multiply
    155,718x = 340,512.75 × 340,512.75
  4. Step 4: Simplify right side
    155,718x = 115,948,932,912.56
  5. Step 5: Solve for x
    x = 115,948,932,912.56/155,718
  6. Step 6: Final answer
    x = 744,608.41

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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.