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Finding the Third Proportional to 180,367 and 280,374

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Solution

The third proportional to 180,367 and 280,374 is: 435,831.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,367 : 280,374 = 280,374 : x
  2. Step 2: Convert to fraction form
    180,367/280,374 = 280,374/x
  3. Step 3: Cross multiply
    180,367x = 280,374 × 280,374
  4. Step 4: Simplify right side
    180,367x = 78,609,579,876
  5. Step 5: Solve for x
    x = 78,609,579,876/180,367
  6. Step 6: Final answer
    x = 435,831.28

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.