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Finding the Fourth Proportional to 268,161.20, 401,896.20 and 205,521.20

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Solution

The fourth proportional to 268,161.20, 401,896.20 and 205,521.20 is: 308,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,161.20 : 401,896.20 = 205,521.20 : x
  2. Step 2: Convert to fraction form
    268,161.20/401,896.20 = 205,521.20/x
  3. Step 3: Cross multiply
    268,161.20x = 401,896.20 × 205,521.20
  4. Step 4: Simplify right side
    268,161.20x = 82,598,189,299.44
  5. Step 5: Solve for x
    x = 82,598,189,299.44/268,161.20
  6. Step 6: Final answer
    x = 308,016.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.