Home / 306.82-423.58-223.84

Finding the Fourth Proportional to 306.82, 423.58 and 223.84

Calculator

Solution

The fourth proportional to 306.82, 423.58 and 223.84 is: 309.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    306.82 : 423.58 = 223.84 : x
  2. Step 2: Convert to fraction form
    306.82/423.58 = 223.84/x
  3. Step 3: Cross multiply
    306.82x = 423.58 × 223.84
  4. Step 4: Simplify right side
    306.82x = 94,814.15
  5. Step 5: Solve for x
    x = 94,814.15/306.82
  6. Step 6: Final answer
    x = 309.02

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.