Home / 378,831.56-522,771.23-206,745.17

Finding the Fourth Proportional to 378,831.56, 522,771.23 and 206,745.17

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Solution

The fourth proportional to 378,831.56, 522,771.23 and 206,745.17 is: 285,299.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,831.56 : 522,771.23 = 206,745.17 : x
  2. Step 2: Convert to fraction form
    378,831.56/522,771.23 = 206,745.17/x
  3. Step 3: Cross multiply
    378,831.56x = 522,771.23 × 206,745.17
  4. Step 4: Simplify right side
    378,831.56x = 108,080,424,720.47
  5. Step 5: Solve for x
    x = 108,080,424,720.47/378,831.56
  6. Step 6: Final answer
    x = 285,299.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.