Home / 263.08-394.54-149

Finding the Fourth Proportional to 263.08, 394.54 and 149

Calculator

Solution

The fourth proportional to 263.08, 394.54 and 149 is: 223.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.08 : 394.54 = 149 : x
  2. Step 2: Convert to fraction form
    263.08/394.54 = 149/x
  3. Step 3: Cross multiply
    263.08x = 394.54 × 149
  4. Step 4: Simplify right side
    263.08x = 58,786.46
  5. Step 5: Solve for x
    x = 58,786.46/263.08
  6. Step 6: Final answer
    x = 223.45

Related Problems

Find fourth proportional to 131.54, 197.27 and 74.50
Half scale
Find fourth proportional to 526.16, 789.08 and 298
Double scale
Find fourth proportional to 264.08, 396.04 and 150
Similar ratio
Find fourth proportional to 394.62, 591.81 and 223.50
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.