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Finding the Third Proportional to 161,864 and 330,148

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Solution

The third proportional to 161,864 and 330,148 is: 673,390.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,864 : 330,148 = 330,148 : x
  2. Step 2: Convert to fraction form
    161,864/330,148 = 330,148/x
  3. Step 3: Cross multiply
    161,864x = 330,148 × 330,148
  4. Step 4: Simplify right side
    161,864x = 108,997,701,904
  5. Step 5: Solve for x
    x = 108,997,701,904/161,864
  6. Step 6: Final answer
    x = 673,390.64

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.