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Finding the Third Proportional to 121,654.50 and 193,723.50

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Solution

The third proportional to 121,654.50 and 193,723.50 is: 308,486.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,654.50 : 193,723.50 = 193,723.50 : x
  2. Step 2: Convert to fraction form
    121,654.50/193,723.50 = 193,723.50/x
  3. Step 3: Cross multiply
    121,654.50x = 193,723.50 × 193,723.50
  4. Step 4: Simplify right side
    121,654.50x = 37,528,794,452.25
  5. Step 5: Solve for x
    x = 37,528,794,452.25/121,654.50
  6. Step 6: Final answer
    x = 308,486.69

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.