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Finding the Third Proportional to 122,435.25 and 255,940.50

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Solution

The third proportional to 122,435.25 and 255,940.50 is: 535,021.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,435.25 : 255,940.50 = 255,940.50 : x
  2. Step 2: Convert to fraction form
    122,435.25/255,940.50 = 255,940.50/x
  3. Step 3: Cross multiply
    122,435.25x = 255,940.50 × 255,940.50
  4. Step 4: Simplify right side
    122,435.25x = 65,505,539,540.25
  5. Step 5: Solve for x
    x = 65,505,539,540.25/122,435.25
  6. Step 6: Final answer
    x = 535,021.90

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.