Home / 206.86-285.45-119.56

Finding the Fourth Proportional to 206.86, 285.45 and 119.56

Calculator

Solution

The fourth proportional to 206.86, 285.45 and 119.56 is: 164.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.86 : 285.45 = 119.56 : x
  2. Step 2: Convert to fraction form
    206.86/285.45 = 119.56/x
  3. Step 3: Cross multiply
    206.86x = 285.45 × 119.56
  4. Step 4: Simplify right side
    206.86x = 34,126.97
  5. Step 5: Solve for x
    x = 34,126.97/206.86
  6. Step 6: Final answer
    x = 164.98

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.