Home / 321.43-443.57-174.06

Finding the Fourth Proportional to 321.43, 443.57 and 174.06

Calculator

Solution

The fourth proportional to 321.43, 443.57 and 174.06 is: 240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.43 : 443.57 = 174.06 : x
  2. Step 2: Convert to fraction form
    321.43/443.57 = 174.06/x
  3. Step 3: Cross multiply
    321.43x = 443.57 × 174.06
  4. Step 4: Simplify right side
    321.43x = 77,206.92
  5. Step 5: Solve for x
    x = 77,206.92/321.43
  6. Step 6: Final answer
    x = 240.20

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.