Home / 378,831.88-568,339.26-142,177

Finding the Fourth Proportional to 378,831.88, 568,339.26 and 142,177

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Solution

The fourth proportional to 378,831.88, 568,339.26 and 142,177 is: 213,299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,831.88 : 568,339.26 = 142,177 : x
  2. Step 2: Convert to fraction form
    378,831.88/568,339.26 = 142,177/x
  3. Step 3: Cross multiply
    378,831.88x = 568,339.26 × 142,177
  4. Step 4: Simplify right side
    378,831.88x = 80,804,770,969.02
  5. Step 5: Solve for x
    x = 80,804,770,969.02/378,831.88
  6. Step 6: Final answer
    x = 213,299.82

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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.