Home / 208.05-287.43-198.06

Finding the Fourth Proportional to 208.05, 287.43 and 198.06

Calculator

Solution

The fourth proportional to 208.05, 287.43 and 198.06 is: 273.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    208.05 : 287.43 = 198.06 : x
  2. Step 2: Convert to fraction form
    208.05/287.43 = 198.06/x
  3. Step 3: Cross multiply
    208.05x = 287.43 × 198.06
  4. Step 4: Simplify right side
    208.05x = 56,928.39
  5. Step 5: Solve for x
    x = 56,928.39/208.05
  6. Step 6: Final answer
    x = 273.63

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.