Home / 225,823.11-311,613.43-130,360.56

Finding the Fourth Proportional to 225,823.11, 311,613.43 and 130,360.56

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Solution

The fourth proportional to 225,823.11, 311,613.43 and 130,360.56 is: 179,884.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,823.11 : 311,613.43 = 130,360.56 : x
  2. Step 2: Convert to fraction form
    225,823.11/311,613.43 = 130,360.56/x
  3. Step 3: Cross multiply
    225,823.11x = 311,613.43 × 130,360.56
  4. Step 4: Simplify right side
    225,823.11x = 40,622,101,238.32
  5. Step 5: Solve for x
    x = 40,622,101,238.32/225,823.11
  6. Step 6: Final answer
    x = 179,884.61

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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.