Home / 387.24-580.22-170.28

Finding the Fourth Proportional to 387.24, 580.22 and 170.28

Calculator

Solution

The fourth proportional to 387.24, 580.22 and 170.28 is: 255.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    387.24 : 580.22 = 170.28 : x
  2. Step 2: Convert to fraction form
    387.24/580.22 = 170.28/x
  3. Step 3: Cross multiply
    387.24x = 580.22 × 170.28
  4. Step 4: Simplify right side
    387.24x = 98,799.86
  5. Step 5: Solve for x
    x = 98,799.86/387.24
  6. Step 6: Final answer
    x = 255.14

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.