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Finding the Third Proportional to 354,422 and 534,172

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Solution

The third proportional to 354,422 and 534,172 is: 805,084.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,422 : 534,172 = 534,172 : x
  2. Step 2: Convert to fraction form
    354,422/534,172 = 534,172/x
  3. Step 3: Cross multiply
    354,422x = 534,172 × 534,172
  4. Step 4: Simplify right side
    354,422x = 285,339,725,584
  5. Step 5: Solve for x
    x = 285,339,725,584/354,422
  6. Step 6: Final answer
    x = 805,084.69

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.