Home / 231.42-347.04-135.21

Finding the Fourth Proportional to 231.42, 347.04 and 135.21

Calculator

Solution

The fourth proportional to 231.42, 347.04 and 135.21 is: 202.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    231.42 : 347.04 = 135.21 : x
  2. Step 2: Convert to fraction form
    231.42/347.04 = 135.21/x
  3. Step 3: Cross multiply
    231.42x = 347.04 × 135.21
  4. Step 4: Simplify right side
    231.42x = 46,923.28
  5. Step 5: Solve for x
    x = 46,923.28/231.42
  6. Step 6: Final answer
    x = 202.76

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.