Home / 392.22-540.86-298.98

Finding the Fourth Proportional to 392.22, 540.86 and 298.98

Calculator

Solution

The fourth proportional to 392.22, 540.86 and 298.98 is: 412.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    392.22 : 540.86 = 298.98 : x
  2. Step 2: Convert to fraction form
    392.22/540.86 = 298.98/x
  3. Step 3: Cross multiply
    392.22x = 540.86 × 298.98
  4. Step 4: Simplify right side
    392.22x = 161,704.83
  5. Step 5: Solve for x
    x = 161,704.83/392.22
  6. Step 6: Final answer
    x = 412.28

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.