Home / 270.90-406.32-88.38

Finding the Fourth Proportional to 270.90, 406.32 and 88.38

Calculator

Solution

The fourth proportional to 270.90, 406.32 and 88.38 is: 132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    270.90 : 406.32 = 88.38 : x
  2. Step 2: Convert to fraction form
    270.90/406.32 = 88.38/x
  3. Step 3: Cross multiply
    270.90x = 406.32 × 88.38
  4. Step 4: Simplify right side
    270.90x = 35,910.56
  5. Step 5: Solve for x
    x = 35,910.56/270.90
  6. Step 6: Final answer
    x = 132.56

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.