Home / 342.39-472.23-231.73

Finding the Fourth Proportional to 342.39, 472.23 and 231.73

Calculator

Solution

The fourth proportional to 342.39, 472.23 and 231.73 is: 319.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.39 : 472.23 = 231.73 : x
  2. Step 2: Convert to fraction form
    342.39/472.23 = 231.73/x
  3. Step 3: Cross multiply
    342.39x = 472.23 × 231.73
  4. Step 4: Simplify right side
    342.39x = 109,428.68
  5. Step 5: Solve for x
    x = 109,428.68/342.39
  6. Step 6: Final answer
    x = 319.60

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.