Home / 225,716.16-311,520.96-130,203.84

Finding the Fourth Proportional to 225,716.16, 311,520.96 and 130,203.84

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Solution

The fourth proportional to 225,716.16, 311,520.96 and 130,203.84 is: 179,700.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,716.16 : 311,520.96 = 130,203.84 : x
  2. Step 2: Convert to fraction form
    225,716.16/311,520.96 = 130,203.84/x
  3. Step 3: Cross multiply
    225,716.16x = 311,520.96 × 130,203.84
  4. Step 4: Simplify right side
    225,716.16x = 40,561,225,232.49
  5. Step 5: Solve for x
    x = 40,561,225,232.49/225,716.16
  6. Step 6: Final answer
    x = 179,700.14

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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.