Home / 778.75-1,168.13-201.63

Finding the Fourth Proportional to 778.75, 1,168.13 and 201.63

Calculator

Solution

The fourth proportional to 778.75, 1,168.13 and 201.63 is: 302.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    778.75 : 1,168.13 = 201.63 : x
  2. Step 2: Convert to fraction form
    778.75/1,168.13 = 201.63/x
  3. Step 3: Cross multiply
    778.75x = 1,168.13 × 201.63
  4. Step 4: Simplify right side
    778.75x = 235,530.05
  5. Step 5: Solve for x
    x = 235,530.05/778.75
  6. Step 6: Final answer
    x = 302.45

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.