Home / 480.94-721.41-192.38

Finding the Fourth Proportional to 480.94, 721.41 and 192.38

Calculator

Solution

The fourth proportional to 480.94, 721.41 and 192.38 is: 288.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    480.94 : 721.41 = 192.38 : x
  2. Step 2: Convert to fraction form
    480.94/721.41 = 192.38/x
  3. Step 3: Cross multiply
    480.94x = 721.41 × 192.38
  4. Step 4: Simplify right side
    480.94x = 138,780.53
  5. Step 5: Solve for x
    x = 138,780.53/480.94
  6. Step 6: Final answer
    x = 288.56

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.