Home / 180.25-249.20-172.60

Finding the Fourth Proportional to 180.25, 249.20 and 172.60

Calculator

Solution

The fourth proportional to 180.25, 249.20 and 172.60 is: 238.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    180.25 : 249.20 = 172.60 : x
  2. Step 2: Convert to fraction form
    180.25/249.20 = 172.60/x
  3. Step 3: Cross multiply
    180.25x = 249.20 × 172.60
  4. Step 4: Simplify right side
    180.25x = 43,011.92
  5. Step 5: Solve for x
    x = 43,011.92/180.25
  6. Step 6: Final answer
    x = 238.62

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.