Home / 286.15-394.62-230.86

Finding the Fourth Proportional to 286.15, 394.62 and 230.86

Calculator

Solution

The fourth proportional to 286.15, 394.62 and 230.86 is: 318.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    286.15 : 394.62 = 230.86 : x
  2. Step 2: Convert to fraction form
    286.15/394.62 = 230.86/x
  3. Step 3: Cross multiply
    286.15x = 394.62 × 230.86
  4. Step 4: Simplify right side
    286.15x = 91,101.97
  5. Step 5: Solve for x
    x = 91,101.97/286.15
  6. Step 6: Final answer
    x = 318.37

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.