Home / 263,540.78-394,980.09-113,605.58

Finding the Fourth Proportional to 263,540.78, 394,980.09 and 113,605.58

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Solution

The fourth proportional to 263,540.78, 394,980.09 and 113,605.58 is: 170,265.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,540.78 : 394,980.09 = 113,605.58 : x
  2. Step 2: Convert to fraction form
    263,540.78/394,980.09 = 113,605.58/x
  3. Step 3: Cross multiply
    263,540.78x = 394,980.09 × 113,605.58
  4. Step 4: Simplify right side
    263,540.78x = 44,871,942,212.90
  5. Step 5: Solve for x
    x = 44,871,942,212.90/263,540.78
  6. Step 6: Final answer
    x = 170,265.65

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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.