Home / 226-339.05-69.84

Finding the Fourth Proportional to 226, 339.05 and 69.84

Calculator

Solution

The fourth proportional to 226, 339.05 and 69.84 is: 104.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    226 : 339.05 = 69.84 : x
  2. Step 2: Convert to fraction form
    226/339.05 = 69.84/x
  3. Step 3: Cross multiply
    226x = 339.05 × 69.84
  4. Step 4: Simplify right side
    226x = 23,679.25
  5. Step 5: Solve for x
    x = 23,679.25/226
  6. Step 6: Final answer
    x = 104.78

Related Problems

Find fourth proportional to 113, 169.53 and 34.92
Half scale
Find fourth proportional to 452, 678.10 and 139.68
Double scale
Find fourth proportional to 227, 340.55 and 70.84
Similar ratio
Find fourth proportional to 339, 508.58 and 104.76
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.