Home / 267-400.50-115

Finding the Fourth Proportional to 267, 400.50 and 115

Calculator

Solution

The fourth proportional to 267, 400.50 and 115 is: 172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267 : 400.50 = 115 : x
  2. Step 2: Convert to fraction form
    267/400.50 = 115/x
  3. Step 3: Cross multiply
    267x = 400.50 × 115
  4. Step 4: Simplify right side
    267x = 46,057.50
  5. Step 5: Solve for x
    x = 46,057.50/267
  6. Step 6: Final answer
    x = 172.50

Related Problems

Find fourth proportional to 133.50, 200.25 and 57.50
Half scale
Find fourth proportional to 534, 801 and 230
Double scale
Find fourth proportional to 268, 402 and 116
Similar ratio
Find fourth proportional to 400.50, 600.75 and 172.50
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.