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Finding the Third Proportional to 175,628 and 271,686

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Solution

The third proportional to 175,628 and 271,686 is: 420,281.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,628 : 271,686 = 271,686 : x
  2. Step 2: Convert to fraction form
    175,628/271,686 = 271,686/x
  3. Step 3: Cross multiply
    175,628x = 271,686 × 271,686
  4. Step 4: Simplify right side
    175,628x = 73,813,282,596
  5. Step 5: Solve for x
    x = 73,813,282,596/175,628
  6. Step 6: Final answer
    x = 420,281.97

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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.