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Finding the Third Proportional to 276,652 and 439,170

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Solution

The third proportional to 276,652 and 439,170 is: 697,158.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,652 : 439,170 = 439,170 : x
  2. Step 2: Convert to fraction form
    276,652/439,170 = 439,170/x
  3. Step 3: Cross multiply
    276,652x = 439,170 × 439,170
  4. Step 4: Simplify right side
    276,652x = 192,870,288,900
  5. Step 5: Solve for x
    x = 192,870,288,900/276,652
  6. Step 6: Final answer
    x = 697,158.48

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.