Home / 394,113.72-591,183.36-154,218.24

Finding the Fourth Proportional to 394,113.72, 591,183.36 and 154,218.24

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Solution

The fourth proportional to 394,113.72, 591,183.36 and 154,218.24 is: 231,332.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,113.72 : 591,183.36 = 154,218.24 : x
  2. Step 2: Convert to fraction form
    394,113.72/591,183.36 = 154,218.24/x
  3. Step 3: Cross multiply
    394,113.72x = 591,183.36 × 154,218.24
  4. Step 4: Simplify right side
    394,113.72x = 91,171,257,296.49
  5. Step 5: Solve for x
    x = 91,171,257,296.49/394,113.72
  6. Step 6: Final answer
    x = 231,332.36

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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.