Home / 361-498.24-223

Finding the Fourth Proportional to 361, 498.24 and 223

Calculator

Solution

The fourth proportional to 361, 498.24 and 223 is: 307.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    361 : 498.24 = 223 : x
  2. Step 2: Convert to fraction form
    361/498.24 = 223/x
  3. Step 3: Cross multiply
    361x = 498.24 × 223
  4. Step 4: Simplify right side
    361x = 111,107.52
  5. Step 5: Solve for x
    x = 111,107.52/361
  6. Step 6: Final answer
    x = 307.78

Related Problems

Find fourth proportional to 180.50, 249.12 and 111.50
Half scale
Find fourth proportional to 722, 996.48 and 446
Double scale
Find fourth proportional to 362, 499.62 and 224
Similar ratio
Find fourth proportional to 541.50, 747.36 and 334.50
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.