Home / 354.31-531.52-110.78

Finding the Fourth Proportional to 354.31, 531.52 and 110.78

Calculator

Solution

The fourth proportional to 354.31, 531.52 and 110.78 is: 166.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    354.31 : 531.52 = 110.78 : x
  2. Step 2: Convert to fraction form
    354.31/531.52 = 110.78/x
  3. Step 3: Cross multiply
    354.31x = 531.52 × 110.78
  4. Step 4: Simplify right side
    354.31x = 58,880.84
  5. Step 5: Solve for x
    x = 58,880.84/354.31
  6. Step 6: Final answer
    x = 166.19

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.