Home / 401.13-600.39-218.07

Finding the Fourth Proportional to 401.13, 600.39 and 218.07

Calculator

Solution

The fourth proportional to 401.13, 600.39 and 218.07 is: 326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    401.13 : 600.39 = 218.07 : x
  2. Step 2: Convert to fraction form
    401.13/600.39 = 218.07/x
  3. Step 3: Cross multiply
    401.13x = 600.39 × 218.07
  4. Step 4: Simplify right side
    401.13x = 130,927.05
  5. Step 5: Solve for x
    x = 130,927.05/401.13
  6. Step 6: Final answer
    x = 326.40

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.