Home / 396,628.19-595,178.67-143,928.39

Finding the Fourth Proportional to 396,628.19, 595,178.67 and 143,928.39

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Solution

The fourth proportional to 396,628.19, 595,178.67 and 143,928.39 is: 215,978.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,628.19 : 595,178.67 = 143,928.39 : x
  2. Step 2: Convert to fraction form
    396,628.19/595,178.67 = 143,928.39/x
  3. Step 3: Cross multiply
    396,628.19x = 595,178.67 × 143,928.39
  4. Step 4: Simplify right side
    396,628.19x = 85,663,107,735.44
  5. Step 5: Solve for x
    x = 85,663,107,735.44/396,628.19
  6. Step 6: Final answer
    x = 215,978.37

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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.