Home / 388.83-582.75-206.11

Finding the Fourth Proportional to 388.83, 582.75 and 206.11

Calculator

Solution

The fourth proportional to 388.83, 582.75 and 206.11 is: 308.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388.83 : 582.75 = 206.11 : x
  2. Step 2: Convert to fraction form
    388.83/582.75 = 206.11/x
  3. Step 3: Cross multiply
    388.83x = 582.75 × 206.11
  4. Step 4: Simplify right side
    388.83x = 120,110.60
  5. Step 5: Solve for x
    x = 120,110.60/388.83
  6. Step 6: Final answer
    x = 308.90

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.