Home / 213.20-294-151

Finding the Fourth Proportional to 213.20, 294 and 151

Calculator

Solution

The fourth proportional to 213.20, 294 and 151 is: 208.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    213.20 : 294 = 151 : x
  2. Step 2: Convert to fraction form
    213.20/294 = 151/x
  3. Step 3: Cross multiply
    213.20x = 294 × 151
  4. Step 4: Simplify right side
    213.20x = 44,394
  5. Step 5: Solve for x
    x = 44,394/213.20
  6. Step 6: Final answer
    x = 208.23

Related Problems

Find fourth proportional to 106.60, 147 and 75.50
Half scale
Find fourth proportional to 426.40, 588 and 302
Double scale
Find fourth proportional to 214.20, 295.38 and 152
Similar ratio
Find fourth proportional to 319.80, 441 and 226.50
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.