Home / 394,130.22-543,868.74-222,040.59

Finding the Fourth Proportional to 394,130.22, 543,868.74 and 222,040.59

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Solution

The fourth proportional to 394,130.22, 543,868.74 and 222,040.59 is: 306,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,130.22 : 543,868.74 = 222,040.59 : x
  2. Step 2: Convert to fraction form
    394,130.22/543,868.74 = 222,040.59/x
  3. Step 3: Cross multiply
    394,130.22x = 543,868.74 × 222,040.59
  4. Step 4: Simplify right side
    394,130.22x = 120,760,935,912.16
  5. Step 5: Solve for x
    x = 120,760,935,912.16/394,130.22
  6. Step 6: Final answer
    x = 306,398.57

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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.