Home / 404.28-558.09-238.68

Finding the Fourth Proportional to 404.28, 558.09 and 238.68

Calculator

Solution

The fourth proportional to 404.28, 558.09 and 238.68 is: 329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    404.28 : 558.09 = 238.68 : x
  2. Step 2: Convert to fraction form
    404.28/558.09 = 238.68/x
  3. Step 3: Cross multiply
    404.28x = 558.09 × 238.68
  4. Step 4: Simplify right side
    404.28x = 133,204.92
  5. Step 5: Solve for x
    x = 133,204.92/404.28
  6. Step 6: Final answer
    x = 329.49

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.