Home / 264,212.80-396,578.40-131,243.20

Finding the Fourth Proportional to 264,212.80, 396,578.40 and 131,243.20

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Solution

The fourth proportional to 264,212.80, 396,578.40 and 131,243.20 is: 196,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,212.80 : 396,578.40 = 131,243.20 : x
  2. Step 2: Convert to fraction form
    264,212.80/396,578.40 = 131,243.20/x
  3. Step 3: Cross multiply
    264,212.80x = 396,578.40 × 131,243.20
  4. Step 4: Simplify right side
    264,212.80x = 52,048,218,266.88
  5. Step 5: Solve for x
    x = 52,048,218,266.88/264,212.80
  6. Step 6: Final answer
    x = 196,993.55

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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.