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Finding the Third Proportional to 278,153 and 598,238

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Solution

The third proportional to 278,153 and 598,238 is: 1,286,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,153 : 598,238 = 598,238 : x
  2. Step 2: Convert to fraction form
    278,153/598,238 = 598,238/x
  3. Step 3: Cross multiply
    278,153x = 598,238 × 598,238
  4. Step 4: Simplify right side
    278,153x = 357,888,704,644
  5. Step 5: Solve for x
    x = 357,888,704,644/278,153
  6. Step 6: Final answer
    x = 1,286,661.31

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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.