Home / 91.88-200.81

Finding the Third Proportional to 91.88 and 200.81

Calculator

Solution

The third proportional to 91.88 and 200.81 is: 438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    91.88 : 200.81 = 200.81 : x
  2. Step 2: Convert to fraction form
    91.88/200.81 = 200.81/x
  3. Step 3: Cross multiply
    91.88x = 200.81 × 200.81
  4. Step 4: Simplify right side
    91.88x = 40,325.66
  5. Step 5: Solve for x
    x = 40,325.66/91.88
  6. Step 6: Final answer
    x = 438.92

Related Problems

Find third proportional to 45.94 and 100.41
Half scale
Find third proportional to 183.75 and 401.63
Double scale
Find third proportional to 94 and 205
Similar ratio
Find third proportional to 137.81 and 301.22
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.