Home / 290.88-436.80-262.56

Finding the Fourth Proportional to 290.88, 436.80 and 262.56

Calculator

Solution

The fourth proportional to 290.88, 436.80 and 262.56 is: 394.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290.88 : 436.80 = 262.56 : x
  2. Step 2: Convert to fraction form
    290.88/436.80 = 262.56/x
  3. Step 3: Cross multiply
    290.88x = 436.80 × 262.56
  4. Step 4: Simplify right side
    290.88x = 114,686.21
  5. Step 5: Solve for x
    x = 114,686.21/290.88
  6. Step 6: Final answer
    x = 394.27

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.