Home / 485.56-727.08-268.84

Finding the Fourth Proportional to 485.56, 727.08 and 268.84

Calculator

Solution

The fourth proportional to 485.56, 727.08 and 268.84 is: 402.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    485.56 : 727.08 = 268.84 : x
  2. Step 2: Convert to fraction form
    485.56/727.08 = 268.84/x
  3. Step 3: Cross multiply
    485.56x = 727.08 × 268.84
  4. Step 4: Simplify right side
    485.56x = 195,468.19
  5. Step 5: Solve for x
    x = 195,468.19/485.56
  6. Step 6: Final answer
    x = 402.56

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.