Home / 436.87-655.03-205.62

Finding the Fourth Proportional to 436.87, 655.03 and 205.62

Calculator

Solution

The fourth proportional to 436.87, 655.03 and 205.62 is: 308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.87 : 655.03 = 205.62 : x
  2. Step 2: Convert to fraction form
    436.87/655.03 = 205.62/x
  3. Step 3: Cross multiply
    436.87x = 655.03 × 205.62
  4. Step 4: Simplify right side
    436.87x = 134,687.27
  5. Step 5: Solve for x
    x = 134,687.27/436.87
  6. Step 6: Final answer
    x = 308.30

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.