Home / 167.72-252-156.40

Finding the Fourth Proportional to 167.72, 252 and 156.40

Calculator

Solution

The fourth proportional to 167.72, 252 and 156.40 is: 234.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.72 : 252 = 156.40 : x
  2. Step 2: Convert to fraction form
    167.72/252 = 156.40/x
  3. Step 3: Cross multiply
    167.72x = 252 × 156.40
  4. Step 4: Simplify right side
    167.72x = 39,412.80
  5. Step 5: Solve for x
    x = 39,412.80/167.72
  6. Step 6: Final answer
    x = 234.99

Related Problems

Find fourth proportional to 83.86, 126 and 78.20
Half scale
Find fourth proportional to 335.44, 504 and 312.80
Double scale
Find fourth proportional to 168.72, 253.50 and 157.40
Similar ratio
Find fourth proportional to 251.58, 378 and 234.60
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.