Home / 243.05-364.63-80.73

Finding the Fourth Proportional to 243.05, 364.63 and 80.73

Calculator

Solution

The fourth proportional to 243.05, 364.63 and 80.73 is: 121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.05 : 364.63 = 80.73 : x
  2. Step 2: Convert to fraction form
    243.05/364.63 = 80.73/x
  3. Step 3: Cross multiply
    243.05x = 364.63 × 80.73
  4. Step 4: Simplify right side
    243.05x = 29,436.58
  5. Step 5: Solve for x
    x = 29,436.58/243.05
  6. Step 6: Final answer
    x = 121.11

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.