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Finding the Third Proportional to 75,015 and 162,911

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Solution

The third proportional to 75,015 and 162,911 is: 353,795.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,015 : 162,911 = 162,911 : x
  2. Step 2: Convert to fraction form
    75,015/162,911 = 162,911/x
  3. Step 3: Cross multiply
    75,015x = 162,911 × 162,911
  4. Step 4: Simplify right side
    75,015x = 26,539,993,921
  5. Step 5: Solve for x
    x = 26,539,993,921/75,015
  6. Step 6: Final answer
    x = 353,795.83

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.