Home / 321.53-443.72-174.17

Finding the Fourth Proportional to 321.53, 443.72 and 174.17

Calculator

Solution

The fourth proportional to 321.53, 443.72 and 174.17 is: 240.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    321.53 : 443.72 = 174.17 : x
  2. Step 2: Convert to fraction form
    321.53/443.72 = 174.17/x
  3. Step 3: Cross multiply
    321.53x = 443.72 × 174.17
  4. Step 4: Simplify right side
    321.53x = 77,281.29
  5. Step 5: Solve for x
    x = 77,281.29/321.53
  6. Step 6: Final answer
    x = 240.35

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.