Home / 198.10-273.39-110.78

Finding the Fourth Proportional to 198.10, 273.39 and 110.78

Calculator

Solution

The fourth proportional to 198.10, 273.39 and 110.78 is: 152.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.10 : 273.39 = 110.78 : x
  2. Step 2: Convert to fraction form
    198.10/273.39 = 110.78/x
  3. Step 3: Cross multiply
    198.10x = 273.39 × 110.78
  4. Step 4: Simplify right side
    198.10x = 30,286.83
  5. Step 5: Solve for x
    x = 30,286.83/198.10
  6. Step 6: Final answer
    x = 152.89

Related Problems

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.