Home / 576.83-864.47-211.28

Finding the Fourth Proportional to 576.83, 864.47 and 211.28

Calculator

Solution

The fourth proportional to 576.83, 864.47 and 211.28 is: 316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    576.83 : 864.47 = 211.28 : x
  2. Step 2: Convert to fraction form
    576.83/864.47 = 211.28/x
  3. Step 3: Cross multiply
    576.83x = 864.47 × 211.28
  4. Step 4: Simplify right side
    576.83x = 182,639.84
  5. Step 5: Solve for x
    x = 182,639.84/576.83
  6. Step 6: Final answer
    x = 316.63

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.