Home / 201.75-431.25

Finding the Third Proportional to 201.75 and 431.25

Calculator

Solution

The third proportional to 201.75 and 431.25 is: 921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    201.75 : 431.25 = 431.25 : x
  2. Step 2: Convert to fraction form
    201.75/431.25 = 431.25/x
  3. Step 3: Cross multiply
    201.75x = 431.25 × 431.25
  4. Step 4: Simplify right side
    201.75x = 185,976.56
  5. Step 5: Solve for x
    x = 185,976.56/201.75
  6. Step 6: Final answer
    x = 921.82

Related Problems

Find third proportional to 100.88 and 215.63
Half scale
Find third proportional to 403.50 and 862.50
Double scale
Find third proportional to 204 and 436
Similar ratio
Find third proportional to 302.63 and 646.88
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.