Home / 262,738.48-394,163.07-85,231.63

Finding the Fourth Proportional to 262,738.48, 394,163.07 and 85,231.63

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Solution

The fourth proportional to 262,738.48, 394,163.07 and 85,231.63 is: 127,865.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,738.48 : 394,163.07 = 85,231.63 : x
  2. Step 2: Convert to fraction form
    262,738.48/394,163.07 = 85,231.63/x
  3. Step 3: Cross multiply
    262,738.48x = 394,163.07 × 85,231.63
  4. Step 4: Simplify right side
    262,738.48x = 33,595,160,941.90
  5. Step 5: Solve for x
    x = 33,595,160,941.90/262,738.48
  6. Step 6: Final answer
    x = 127,865.40

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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.