Home / 367-506.50-211.78

Finding the Fourth Proportional to 367, 506.50 and 211.78

Calculator

Solution

The fourth proportional to 367, 506.50 and 211.78 is: 292.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    367 : 506.50 = 211.78 : x
  2. Step 2: Convert to fraction form
    367/506.50 = 211.78/x
  3. Step 3: Cross multiply
    367x = 506.50 × 211.78
  4. Step 4: Simplify right side
    367x = 107,266.57
  5. Step 5: Solve for x
    x = 107,266.57/367
  6. Step 6: Final answer
    x = 292.28

Related Problems

Find fourth proportional to 183.50, 253.25 and 105.89
Half scale
Find fourth proportional to 734, 1,013 and 423.56
Double scale
Find fourth proportional to 368, 507.88 and 212.78
Similar ratio
Find fourth proportional to 550.50, 759.75 and 317.67
1.5x scale

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.