Home / 344.52-516.78-216

Finding the Fourth Proportional to 344.52, 516.78 and 216

Calculator

Solution

The fourth proportional to 344.52, 516.78 and 216 is: 324

Step by Step Solution

  1. Step 1: Write the proportion equation
    344.52 : 516.78 = 216 : x
  2. Step 2: Convert to fraction form
    344.52/516.78 = 216/x
  3. Step 3: Cross multiply
    344.52x = 516.78 × 216
  4. Step 4: Simplify right side
    344.52x = 111,624.48
  5. Step 5: Solve for x
    x = 111,624.48/344.52
  6. Step 6: Final answer
    x = 324

Related Problems

Find fourth proportional to 172.26, 258.39 and 108
Half scale
Find fourth proportional to 689.04, 1,033.56 and 432
Double scale
Find fourth proportional to 345.52, 518.28 and 217
Similar ratio
Find fourth proportional to 516.78, 775.17 and 324
1.5x scale

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.