Home / 243.18-335.25-165.42

Finding the Fourth Proportional to 243.18, 335.25 and 165.42

Calculator

Solution

The fourth proportional to 243.18, 335.25 and 165.42 is: 228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    243.18 : 335.25 = 165.42 : x
  2. Step 2: Convert to fraction form
    243.18/335.25 = 165.42/x
  3. Step 3: Cross multiply
    243.18x = 335.25 × 165.42
  4. Step 4: Simplify right side
    243.18x = 55,457.06
  5. Step 5: Solve for x
    x = 55,457.06/243.18
  6. Step 6: Final answer
    x = 228.05

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.