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Finding the Third Proportional to 120,624 and 177,321

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Solution

The third proportional to 120,624 and 177,321 is: 260,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,624 : 177,321 = 177,321 : x
  2. Step 2: Convert to fraction form
    120,624/177,321 = 177,321/x
  3. Step 3: Cross multiply
    120,624x = 177,321 × 177,321
  4. Step 4: Simplify right side
    120,624x = 31,442,737,041
  5. Step 5: Solve for x
    x = 31,442,737,041/120,624
  6. Step 6: Final answer
    x = 260,667.34

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.