Home / 263,212.80-394,495.20-178,972.80

Finding the Fourth Proportional to 263,212.80, 394,495.20 and 178,972.80

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Solution

The fourth proportional to 263,212.80, 394,495.20 and 178,972.80 is: 268,238.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,212.80 : 394,495.20 = 178,972.80 : x
  2. Step 2: Convert to fraction form
    263,212.80/394,495.20 = 178,972.80/x
  3. Step 3: Cross multiply
    263,212.80x = 394,495.20 × 178,972.80
  4. Step 4: Simplify right side
    263,212.80x = 70,603,910,530.56
  5. Step 5: Solve for x
    x = 70,603,910,530.56/263,212.80
  6. Step 6: Final answer
    x = 268,238.89

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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.