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Finding the Third Proportional to 159,186 and 348,990

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Solution

The third proportional to 159,186 and 348,990 is: 765,105.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,186 : 348,990 = 348,990 : x
  2. Step 2: Convert to fraction form
    159,186/348,990 = 348,990/x
  3. Step 3: Cross multiply
    159,186x = 348,990 × 348,990
  4. Step 4: Simplify right side
    159,186x = 121,794,020,100
  5. Step 5: Solve for x
    x = 121,794,020,100/159,186
  6. Step 6: Final answer
    x = 765,105.10

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.