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Finding the Third Proportional to 155,480.13 and 339,100.80

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Solution

The third proportional to 155,480.13 and 339,100.80 is: 739,575.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,480.13 : 339,100.80 = 339,100.80 : x
  2. Step 2: Convert to fraction form
    155,480.13/339,100.80 = 339,100.80/x
  3. Step 3: Cross multiply
    155,480.13x = 339,100.80 × 339,100.80
  4. Step 4: Simplify right side
    155,480.13x = 114,989,355,739.71
  5. Step 5: Solve for x
    x = 114,989,355,739.71/155,480.13
  6. Step 6: Final answer
    x = 739,575.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.