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Finding the Third Proportional to 144,672 and 221,177.25

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Solution

The third proportional to 144,672 and 221,177.25 is: 338,139.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,672 : 221,177.25 = 221,177.25 : x
  2. Step 2: Convert to fraction form
    144,672/221,177.25 = 221,177.25/x
  3. Step 3: Cross multiply
    144,672x = 221,177.25 × 221,177.25
  4. Step 4: Simplify right side
    144,672x = 48,919,375,917.56
  5. Step 5: Solve for x
    x = 48,919,375,917.56/144,672
  6. Step 6: Final answer
    x = 338,139.90

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.