Home / 266-399-114

Finding the Fourth Proportional to 266, 399 and 114

Calculator

Solution

The fourth proportional to 266, 399 and 114 is: 171

Step by Step Solution

  1. Step 1: Write the proportion equation
    266 : 399 = 114 : x
  2. Step 2: Convert to fraction form
    266/399 = 114/x
  3. Step 3: Cross multiply
    266x = 399 × 114
  4. Step 4: Simplify right side
    266x = 45,486
  5. Step 5: Solve for x
    x = 45,486/266
  6. Step 6: Final answer
    x = 171

Related Problems

Find fourth proportional to 133, 199.50 and 57
Half scale
Find fourth proportional to 532, 798 and 228
Double scale
Find fourth proportional to 267, 400.50 and 115
Similar ratio
Find fourth proportional to 399, 598.50 and 171
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.