Home / 188-400

Finding the Third Proportional to 188 and 400

Calculator

Solution

The third proportional to 188 and 400 is: 851.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    188 : 400 = 400 : x
  2. Step 2: Convert to fraction form
    188/400 = 400/x
  3. Step 3: Cross multiply
    188x = 400 × 400
  4. Step 4: Simplify right side
    188x = 160,000
  5. Step 5: Solve for x
    x = 160,000/188
  6. Step 6: Final answer
    x = 851.06

Related Problems

Find third proportional to 94 and 200
Half scale
Find third proportional to 376 and 800
Double scale
Find third proportional to 190 and 404
Similar ratio
Find third proportional to 282 and 600
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.