Home / 371.83-512.02-318.98

Finding the Fourth Proportional to 371.83, 512.02 and 318.98

Calculator

Solution

The fourth proportional to 371.83, 512.02 and 318.98 is: 439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    371.83 : 512.02 = 318.98 : x
  2. Step 2: Convert to fraction form
    371.83/512.02 = 318.98/x
  3. Step 3: Cross multiply
    371.83x = 512.02 × 318.98
  4. Step 4: Simplify right side
    371.83x = 163,324.14
  5. Step 5: Solve for x
    x = 163,324.14/371.83
  6. Step 6: Final answer
    x = 439.24

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.