Home / 556.16-767.52-320.12

Finding the Fourth Proportional to 556.16, 767.52 and 320.12

Calculator

Solution

The fourth proportional to 556.16, 767.52 and 320.12 is: 441.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.16 : 767.52 = 320.12 : x
  2. Step 2: Convert to fraction form
    556.16/767.52 = 320.12/x
  3. Step 3: Cross multiply
    556.16x = 767.52 × 320.12
  4. Step 4: Simplify right side
    556.16x = 245,698.50
  5. Step 5: Solve for x
    x = 245,698.50/556.16
  6. Step 6: Final answer
    x = 441.78

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.