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Finding the Third Proportional to 188,736 and 408,960

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Solution

The third proportional to 188,736 and 408,960 is: 886,149.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,736 : 408,960 = 408,960 : x
  2. Step 2: Convert to fraction form
    188,736/408,960 = 408,960/x
  3. Step 3: Cross multiply
    188,736x = 408,960 × 408,960
  4. Step 4: Simplify right side
    188,736x = 167,248,281,600
  5. Step 5: Solve for x
    x = 167,248,281,600/188,736
  6. Step 6: Final answer
    x = 886,149.34

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.