Home / 220.50-292.50

Finding the Third Proportional to 220.50 and 292.50

Calculator

Solution

The third proportional to 220.50 and 292.50 is: 388.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    220.50 : 292.50 = 292.50 : x
  2. Step 2: Convert to fraction form
    220.50/292.50 = 292.50/x
  3. Step 3: Cross multiply
    220.50x = 292.50 × 292.50
  4. Step 4: Simplify right side
    220.50x = 85,556.25
  5. Step 5: Solve for x
    x = 85,556.25/220.50
  6. Step 6: Final answer
    x = 388.01

Related Problems

Find third proportional to 110.25 and 146.25
Half scale
Find third proportional to 441 and 585
Double scale
Find third proportional to 223 and 295
Similar ratio
Find third proportional to 330.75 and 438.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.