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Finding the Third Proportional to 128,867 and 276,804

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Solution

The third proportional to 128,867 and 276,804 is: 594,570.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,867 : 276,804 = 276,804 : x
  2. Step 2: Convert to fraction form
    128,867/276,804 = 276,804/x
  3. Step 3: Cross multiply
    128,867x = 276,804 × 276,804
  4. Step 4: Simplify right side
    128,867x = 76,620,454,416
  5. Step 5: Solve for x
    x = 76,620,454,416/128,867
  6. Step 6: Final answer
    x = 594,570.02

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.