Home / 267.41-401.21-105.20

Finding the Fourth Proportional to 267.41, 401.21 and 105.20

Calculator

Solution

The fourth proportional to 267.41, 401.21 and 105.20 is: 157.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.41 : 401.21 = 105.20 : x
  2. Step 2: Convert to fraction form
    267.41/401.21 = 105.20/x
  3. Step 3: Cross multiply
    267.41x = 401.21 × 105.20
  4. Step 4: Simplify right side
    267.41x = 42,204.76
  5. Step 5: Solve for x
    x = 42,204.76/267.41
  6. Step 6: Final answer
    x = 157.83

Related Problems

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.