Home / 243.96-365.99-81.63

Finding the Fourth Proportional to 243.96, 365.99 and 81.63

Calculator

Solution

The fourth proportional to 243.96, 365.99 and 81.63 is: 122.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.96 : 365.99 = 81.63 : x
  2. Step 2: Convert to fraction form
    243.96/365.99 = 81.63/x
  3. Step 3: Cross multiply
    243.96x = 365.99 × 81.63
  4. Step 4: Simplify right side
    243.96x = 29,877.07
  5. Step 5: Solve for x
    x = 29,877.07/243.96
  6. Step 6: Final answer
    x = 122.47

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.