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Finding the Third Proportional to 225,731 and 470,145

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Solution

The third proportional to 225,731 and 470,145 is: 979,202.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,731 : 470,145 = 470,145 : x
  2. Step 2: Convert to fraction form
    225,731/470,145 = 470,145/x
  3. Step 3: Cross multiply
    225,731x = 470,145 × 470,145
  4. Step 4: Simplify right side
    225,731x = 221,036,321,025
  5. Step 5: Solve for x
    x = 221,036,321,025/225,731
  6. Step 6: Final answer
    x = 979,202.33

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.