Home / 191.25-221.63

Finding the Third Proportional to 191.25 and 221.63

Calculator

Solution

The third proportional to 191.25 and 221.63 is: 256.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    191.25 : 221.63 = 221.63 : x
  2. Step 2: Convert to fraction form
    191.25/221.63 = 221.63/x
  3. Step 3: Cross multiply
    191.25x = 221.63 × 221.63
  4. Step 4: Simplify right side
    191.25x = 49,117.64
  5. Step 5: Solve for x
    x = 49,117.64/191.25
  6. Step 6: Final answer
    x = 256.82

Related Problems

Find third proportional to 95.63 and 110.81
Half scale
Find third proportional to 382.50 and 443.25
Double scale
Find third proportional to 193 and 224
Similar ratio
Find third proportional to 286.88 and 332.44
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.