Home / 361.04-498.28-221.16

Finding the Fourth Proportional to 361.04, 498.28 and 221.16

Calculator

Solution

The fourth proportional to 361.04, 498.28 and 221.16 is: 305.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    361.04 : 498.28 = 221.16 : x
  2. Step 2: Convert to fraction form
    361.04/498.28 = 221.16/x
  3. Step 3: Cross multiply
    361.04x = 498.28 × 221.16
  4. Step 4: Simplify right side
    361.04x = 110,199.05
  5. Step 5: Solve for x
    x = 110,199.05/361.04
  6. Step 6: Final answer
    x = 305.23

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.