Home / 208,131.91-312,197.88-50,360.37

Finding the Fourth Proportional to 208,131.91, 312,197.88 and 50,360.37

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Solution

The fourth proportional to 208,131.91, 312,197.88 and 50,360.37 is: 75,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,131.91 : 312,197.88 = 50,360.37 : x
  2. Step 2: Convert to fraction form
    208,131.91/312,197.88 = 50,360.37/x
  3. Step 3: Cross multiply
    208,131.91x = 312,197.88 × 50,360.37
  4. Step 4: Simplify right side
    208,131.91x = 15,722,400,750.02
  5. Step 5: Solve for x
    x = 15,722,400,750.02/208,131.91
  6. Step 6: Final answer
    x = 75,540.56

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1.5x scale

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.