Home / 492.55-679.66-282.71

Finding the Fourth Proportional to 492.55, 679.66 and 282.71

Calculator

Solution

The fourth proportional to 492.55, 679.66 and 282.71 is: 390.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    492.55 : 679.66 = 282.71 : x
  2. Step 2: Convert to fraction form
    492.55/679.66 = 282.71/x
  3. Step 3: Cross multiply
    492.55x = 679.66 × 282.71
  4. Step 4: Simplify right side
    492.55x = 192,145.27
  5. Step 5: Solve for x
    x = 192,145.27/492.55
  6. Step 6: Final answer
    x = 390.11

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.