Home / 265.70-398.34-144.11

Finding the Fourth Proportional to 265.70, 398.34 and 144.11

Calculator

Solution

The fourth proportional to 265.70, 398.34 and 144.11 is: 216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    265.70 : 398.34 = 144.11 : x
  2. Step 2: Convert to fraction form
    265.70/398.34 = 144.11/x
  3. Step 3: Cross multiply
    265.70x = 398.34 × 144.11
  4. Step 4: Simplify right side
    265.70x = 57,405.77
  5. Step 5: Solve for x
    x = 57,405.77/265.70
  6. Step 6: Final answer
    x = 216.05

Related Problems

Find fourth proportional to 132.85, 199.17 and 72.06
Half scale
Find fourth proportional to 531.41, 796.68 and 288.23
Double scale
Find fourth proportional to 266.70, 399.84 and 145.11
Similar ratio
Find fourth proportional to 398.55, 597.51 and 216.17
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.