Home / 209.72-289.44-150.69

Finding the Fourth Proportional to 209.72, 289.44 and 150.69

Calculator

Solution

The fourth proportional to 209.72, 289.44 and 150.69 is: 207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    209.72 : 289.44 = 150.69 : x
  2. Step 2: Convert to fraction form
    209.72/289.44 = 150.69/x
  3. Step 3: Cross multiply
    209.72x = 289.44 × 150.69
  4. Step 4: Simplify right side
    209.72x = 43,616.80
  5. Step 5: Solve for x
    x = 43,616.80/209.72
  6. Step 6: Final answer
    x = 207.97

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.