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Finding the Third Proportional to 151,551 and 180,711

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Solution

The third proportional to 151,551 and 180,711 is: 215,481.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,551 : 180,711 = 180,711 : x
  2. Step 2: Convert to fraction form
    151,551/180,711 = 180,711/x
  3. Step 3: Cross multiply
    151,551x = 180,711 × 180,711
  4. Step 4: Simplify right side
    151,551x = 32,656,465,521
  5. Step 5: Solve for x
    x = 32,656,465,521/151,551
  6. Step 6: Final answer
    x = 215,481.69

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Why These Related Problems?

These problems maintain the same ratio (1.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.