Home / 205.03-217.69

Finding the Third Proportional to 205.03 and 217.69

Calculator

Solution

The third proportional to 205.03 and 217.69 is: 231.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    205.03 : 217.69 = 217.69 : x
  2. Step 2: Convert to fraction form
    205.03/217.69 = 217.69/x
  3. Step 3: Cross multiply
    205.03x = 217.69 × 217.69
  4. Step 4: Simplify right side
    205.03x = 47,387.85
  5. Step 5: Solve for x
    x = 47,387.85/205.03
  6. Step 6: Final answer
    x = 231.13

Related Problems

Find third proportional to 102.52 and 108.84
Half scale
Find third proportional to 410.06 and 435.38
Double scale
Find third proportional to 207 and 220
Similar ratio
Find third proportional to 307.55 and 326.53
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.