Home / 225,796.12-311,527.74-130,290.28

Finding the Fourth Proportional to 225,796.12, 311,527.74 and 130,290.28

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Solution

The fourth proportional to 225,796.12, 311,527.74 and 130,290.28 is: 179,759.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,796.12 : 311,527.74 = 130,290.28 : x
  2. Step 2: Convert to fraction form
    225,796.12/311,527.74 = 130,290.28/x
  3. Step 3: Cross multiply
    225,796.12x = 311,527.74 × 130,290.28
  4. Step 4: Simplify right side
    225,796.12x = 40,589,036,472.37
  5. Step 5: Solve for x
    x = 40,589,036,472.37/225,796.12
  6. Step 6: Final answer
    x = 179,759.67

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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.