Home / 206.83-285.19-133.05

Finding the Fourth Proportional to 206.83, 285.19 and 133.05

Calculator

Solution

The fourth proportional to 206.83, 285.19 and 133.05 is: 183.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    206.83 : 285.19 = 133.05 : x
  2. Step 2: Convert to fraction form
    206.83/285.19 = 133.05/x
  3. Step 3: Cross multiply
    206.83x = 285.19 × 133.05
  4. Step 4: Simplify right side
    206.83x = 37,944.53
  5. Step 5: Solve for x
    x = 37,944.53/206.83
  6. Step 6: Final answer
    x = 183.46

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.