Home / 371.26-512.26-282.72

Finding the Fourth Proportional to 371.26, 512.26 and 282.72

Calculator

Solution

The fourth proportional to 371.26, 512.26 and 282.72 is: 390.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.26 : 512.26 = 282.72 : x
  2. Step 2: Convert to fraction form
    371.26/512.26 = 282.72/x
  3. Step 3: Cross multiply
    371.26x = 512.26 × 282.72
  4. Step 4: Simplify right side
    371.26x = 144,825.44
  5. Step 5: Solve for x
    x = 144,825.44/371.26
  6. Step 6: Final answer
    x = 390.09

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.