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Finding the Third Proportional to 220,648 and 340,958

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Solution

The third proportional to 220,648 and 340,958 is: 526,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,648 : 340,958 = 340,958 : x
  2. Step 2: Convert to fraction form
    220,648/340,958 = 340,958/x
  3. Step 3: Cross multiply
    220,648x = 340,958 × 340,958
  4. Step 4: Simplify right side
    220,648x = 116,252,357,764
  5. Step 5: Solve for x
    x = 116,252,357,764/220,648
  6. Step 6: Final answer
    x = 526,867.94

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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.