Home / 263,100.05-394,584.39-103,208.48

Finding the Fourth Proportional to 263,100.05, 394,584.39 and 103,208.48

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Solution

The fourth proportional to 263,100.05, 394,584.39 and 103,208.48 is: 154,786.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,100.05 : 394,584.39 = 103,208.48 : x
  2. Step 2: Convert to fraction form
    263,100.05/394,584.39 = 103,208.48/x
  3. Step 3: Cross multiply
    263,100.05x = 394,584.39 × 103,208.48
  4. Step 4: Simplify right side
    263,100.05x = 40,724,455,123.63
  5. Step 5: Solve for x
    x = 40,724,455,123.63/263,100.05
  6. Step 6: Final answer
    x = 154,786.95

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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.