Home / 399.40-599.13-238.07

Finding the Fourth Proportional to 399.40, 599.13 and 238.07

Calculator

Solution

The fourth proportional to 399.40, 599.13 and 238.07 is: 357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    399.40 : 599.13 = 238.07 : x
  2. Step 2: Convert to fraction form
    399.40/599.13 = 238.07/x
  3. Step 3: Cross multiply
    399.40x = 599.13 × 238.07
  4. Step 4: Simplify right side
    399.40x = 142,636.38
  5. Step 5: Solve for x
    x = 142,636.38/399.40
  6. Step 6: Final answer
    x = 357.13

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.