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Finding the Third Proportional to 280,450 and 608,218

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Solution

The third proportional to 280,450 and 608,218 is: 1,319,055.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,450 : 608,218 = 608,218 : x
  2. Step 2: Convert to fraction form
    280,450/608,218 = 608,218/x
  3. Step 3: Cross multiply
    280,450x = 608,218 × 608,218
  4. Step 4: Simplify right side
    280,450x = 369,929,135,524
  5. Step 5: Solve for x
    x = 369,929,135,524/280,450
  6. Step 6: Final answer
    x = 1,319,055.57

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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.