Home / 439.38-606.60-264.78

Finding the Fourth Proportional to 439.38, 606.60 and 264.78

Calculator

Solution

The fourth proportional to 439.38, 606.60 and 264.78 is: 365.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    439.38 : 606.60 = 264.78 : x
  2. Step 2: Convert to fraction form
    439.38/606.60 = 264.78/x
  3. Step 3: Cross multiply
    439.38x = 606.60 × 264.78
  4. Step 4: Simplify right side
    439.38x = 160,615.55
  5. Step 5: Solve for x
    x = 160,615.55/439.38
  6. Step 6: Final answer
    x = 365.55

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.