Home / 472.78-652.22-276.20

Finding the Fourth Proportional to 472.78, 652.22 and 276.20

Calculator

Solution

The fourth proportional to 472.78, 652.22 and 276.20 is: 381.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    472.78 : 652.22 = 276.20 : x
  2. Step 2: Convert to fraction form
    472.78/652.22 = 276.20/x
  3. Step 3: Cross multiply
    472.78x = 652.22 × 276.20
  4. Step 4: Simplify right side
    472.78x = 180,145.49
  5. Step 5: Solve for x
    x = 180,145.49/472.78
  6. Step 6: Final answer
    x = 381.04

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.