Home / 214.77-321.94-111.99

Finding the Fourth Proportional to 214.77, 321.94 and 111.99

Calculator

Solution

The fourth proportional to 214.77, 321.94 and 111.99 is: 167.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.77 : 321.94 = 111.99 : x
  2. Step 2: Convert to fraction form
    214.77/321.94 = 111.99/x
  3. Step 3: Cross multiply
    214.77x = 321.94 × 111.99
  4. Step 4: Simplify right side
    214.77x = 36,054.06
  5. Step 5: Solve for x
    x = 36,054.06/214.77
  6. Step 6: Final answer
    x = 167.87

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.