Home / 203.42-280.68-125.76

Finding the Fourth Proportional to 203.42, 280.68 and 125.76

Calculator

Solution

The fourth proportional to 203.42, 280.68 and 125.76 is: 173.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203.42 : 280.68 = 125.76 : x
  2. Step 2: Convert to fraction form
    203.42/280.68 = 125.76/x
  3. Step 3: Cross multiply
    203.42x = 280.68 × 125.76
  4. Step 4: Simplify right side
    203.42x = 35,298.32
  5. Step 5: Solve for x
    x = 35,298.32/203.42
  6. Step 6: Final answer
    x = 173.52

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.