Home / 401.05-553.44-226.38

Finding the Fourth Proportional to 401.05, 553.44 and 226.38

Calculator

Solution

The fourth proportional to 401.05, 553.44 and 226.38 is: 312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.05 : 553.44 = 226.38 : x
  2. Step 2: Convert to fraction form
    401.05/553.44 = 226.38/x
  3. Step 3: Cross multiply
    401.05x = 553.44 × 226.38
  4. Step 4: Simplify right side
    401.05x = 125,287.75
  5. Step 5: Solve for x
    x = 125,287.75/401.05
  6. Step 6: Final answer
    x = 312.40

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.