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Finding the Third Proportional to 217,339 and 345,826

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Solution

The third proportional to 217,339 and 345,826 is: 550,272.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,339 : 345,826 = 345,826 : x
  2. Step 2: Convert to fraction form
    217,339/345,826 = 345,826/x
  3. Step 3: Cross multiply
    217,339x = 345,826 × 345,826
  4. Step 4: Simplify right side
    217,339x = 119,595,622,276
  5. Step 5: Solve for x
    x = 119,595,622,276/217,339
  6. Step 6: Final answer
    x = 550,272.26

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.