Home / 285.50-394-182

Finding the Fourth Proportional to 285.50, 394 and 182

Calculator

Solution

The fourth proportional to 285.50, 394 and 182 is: 251.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285.50 : 394 = 182 : x
  2. Step 2: Convert to fraction form
    285.50/394 = 182/x
  3. Step 3: Cross multiply
    285.50x = 394 × 182
  4. Step 4: Simplify right side
    285.50x = 71,708
  5. Step 5: Solve for x
    x = 71,708/285.50
  6. Step 6: Final answer
    x = 251.17

Related Problems

Find fourth proportional to 142.75, 197 and 91
Half scale
Find fourth proportional to 571, 788 and 364
Double scale
Find fourth proportional to 286.50, 395.38 and 183
Similar ratio
Find fourth proportional to 428.25, 591 and 273
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.