Home / 445.03-667.27-136.80

Finding the Fourth Proportional to 445.03, 667.27 and 136.80

Calculator

Solution

The fourth proportional to 445.03, 667.27 and 136.80 is: 205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.03 : 667.27 = 136.80 : x
  2. Step 2: Convert to fraction form
    445.03/667.27 = 136.80/x
  3. Step 3: Cross multiply
    445.03x = 667.27 × 136.80
  4. Step 4: Simplify right side
    445.03x = 91,282.54
  5. Step 5: Solve for x
    x = 91,282.54/445.03
  6. Step 6: Final answer
    x = 205.12

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.