Home / 234.79-352.15-80.71

Finding the Fourth Proportional to 234.79, 352.15 and 80.71

Calculator

Solution

The fourth proportional to 234.79, 352.15 and 80.71 is: 121.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.79 : 352.15 = 80.71 : x
  2. Step 2: Convert to fraction form
    234.79/352.15 = 80.71/x
  3. Step 3: Cross multiply
    234.79x = 352.15 × 80.71
  4. Step 4: Simplify right side
    234.79x = 28,422.03
  5. Step 5: Solve for x
    x = 28,422.03/234.79
  6. Step 6: Final answer
    x = 121.05

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.