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Finding the Third Proportional to 160,836 and 339,816

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Solution

The third proportional to 160,836 and 339,816 is: 717,966.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,836 : 339,816 = 339,816 : x
  2. Step 2: Convert to fraction form
    160,836/339,816 = 339,816/x
  3. Step 3: Cross multiply
    160,836x = 339,816 × 339,816
  4. Step 4: Simplify right side
    160,836x = 115,474,913,856
  5. Step 5: Solve for x
    x = 115,474,913,856/160,836
  6. Step 6: Final answer
    x = 717,966.83

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.