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Finding the Third Proportional to 121,828.25 and 182,742.50

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Solution

The third proportional to 121,828.25 and 182,742.50 is: 274,113.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,828.25 : 182,742.50 = 182,742.50 : x
  2. Step 2: Convert to fraction form
    121,828.25/182,742.50 = 182,742.50/x
  3. Step 3: Cross multiply
    121,828.25x = 182,742.50 × 182,742.50
  4. Step 4: Simplify right side
    121,828.25x = 33,394,821,306.25
  5. Step 5: Solve for x
    x = 33,394,821,306.25/121,828.25
  6. Step 6: Final answer
    x = 274,113.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.