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Finding the Third Proportional to 181,020 and 397,724

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Solution

The third proportional to 181,020 and 397,724 is: 873,850.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,020 : 397,724 = 397,724 : x
  2. Step 2: Convert to fraction form
    181,020/397,724 = 397,724/x
  3. Step 3: Cross multiply
    181,020x = 397,724 × 397,724
  4. Step 4: Simplify right side
    181,020x = 158,184,380,176
  5. Step 5: Solve for x
    x = 158,184,380,176/181,020
  6. Step 6: Final answer
    x = 873,850.29

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.