Home / 317.48-476.25-144.27

Finding the Fourth Proportional to 317.48, 476.25 and 144.27

Calculator

Solution

The fourth proportional to 317.48, 476.25 and 144.27 is: 216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.48 : 476.25 = 144.27 : x
  2. Step 2: Convert to fraction form
    317.48/476.25 = 144.27/x
  3. Step 3: Cross multiply
    317.48x = 476.25 × 144.27
  4. Step 4: Simplify right side
    317.48x = 68,708.59
  5. Step 5: Solve for x
    x = 68,708.59/317.48
  6. Step 6: Final answer
    x = 216.42

Related Problems

Find fourth proportional to 158.74, 238.13 and 72.14
Half scale
Find fourth proportional to 634.95, 952.50 and 288.54
Double scale
Find fourth proportional to 318.48, 477.75 and 145.27
Similar ratio
Find fourth proportional to 476.21, 714.38 and 216.41
1.5x scale

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.