Home / 225,520.55-311,100.36-139,452.02

Finding the Fourth Proportional to 225,520.55, 311,100.36 and 139,452.02

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Solution

The fourth proportional to 225,520.55, 311,100.36 and 139,452.02 is: 192,370.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,520.55 : 311,100.36 = 139,452.02 : x
  2. Step 2: Convert to fraction form
    225,520.55/311,100.36 = 139,452.02/x
  3. Step 3: Cross multiply
    225,520.55x = 311,100.36 × 139,452.02
  4. Step 4: Simplify right side
    225,520.55x = 43,383,572,069.23
  5. Step 5: Solve for x
    x = 43,383,572,069.23/225,520.55
  6. Step 6: Final answer
    x = 192,370.82

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1.5x scale

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.