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Finding the Third Proportional to 180,362 and 280,367

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Solution

The third proportional to 180,362 and 280,367 is: 435,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,362 : 280,367 = 280,367 : x
  2. Step 2: Convert to fraction form
    180,362/280,367 = 280,367/x
  3. Step 3: Cross multiply
    180,362x = 280,367 × 280,367
  4. Step 4: Simplify right side
    180,362x = 78,605,654,689
  5. Step 5: Solve for x
    x = 78,605,654,689/180,362
  6. Step 6: Final answer
    x = 435,821.60

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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.