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Finding the Fourth Proportional to 271,027.20, 405,763.20 and 263,251.20

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Solution

The fourth proportional to 271,027.20, 405,763.20 and 263,251.20 is: 394,121.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,027.20 : 405,763.20 = 263,251.20 : x
  2. Step 2: Convert to fraction form
    271,027.20/405,763.20 = 263,251.20/x
  3. Step 3: Cross multiply
    271,027.20x = 405,763.20 × 263,251.20
  4. Step 4: Simplify right side
    271,027.20x = 106,817,649,315.84
  5. Step 5: Solve for x
    x = 106,817,649,315.84/271,027.20
  6. Step 6: Final answer
    x = 394,121.51

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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.