Home / 484.96-727.36-138.25

Finding the Fourth Proportional to 484.96, 727.36 and 138.25

Calculator

Solution

The fourth proportional to 484.96, 727.36 and 138.25 is: 207.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    484.96 : 727.36 = 138.25 : x
  2. Step 2: Convert to fraction form
    484.96/727.36 = 138.25/x
  3. Step 3: Cross multiply
    484.96x = 727.36 × 138.25
  4. Step 4: Simplify right side
    484.96x = 100,557.52
  5. Step 5: Solve for x
    x = 100,557.52/484.96
  6. Step 6: Final answer
    x = 207.35

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.