Home / 484-726.12-142

Finding the Fourth Proportional to 484, 726.12 and 142

Calculator

Solution

The fourth proportional to 484, 726.12 and 142 is: 213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    484 : 726.12 = 142 : x
  2. Step 2: Convert to fraction form
    484/726.12 = 142/x
  3. Step 3: Cross multiply
    484x = 726.12 × 142
  4. Step 4: Simplify right side
    484x = 103,109.04
  5. Step 5: Solve for x
    x = 103,109.04/484
  6. Step 6: Final answer
    x = 213.04

Related Problems

Find fourth proportional to 242, 363.06 and 71
Half scale
Find fourth proportional to 968, 1,452.24 and 284
Double scale
Find fourth proportional to 485, 727.62 and 143
Similar ratio
Find fourth proportional to 726, 1,089.18 and 213
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.