Home / 394,183.28-543,937.21-222,129.25

Finding the Fourth Proportional to 394,183.28, 543,937.21 and 222,129.25

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Solution

The fourth proportional to 394,183.28, 543,937.21 and 222,129.25 is: 306,518.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,183.28 : 543,937.21 = 222,129.25 : x
  2. Step 2: Convert to fraction form
    394,183.28/543,937.21 = 222,129.25/x
  3. Step 3: Cross multiply
    394,183.28x = 543,937.21 × 222,129.25
  4. Step 4: Simplify right side
    394,183.28x = 120,824,362,589.23
  5. Step 5: Solve for x
    x = 120,824,362,589.23/394,183.28
  6. Step 6: Final answer
    x = 306,518.23

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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.