Home / 100.50-219

Finding the Third Proportional to 100.50 and 219

Calculator

Solution

The third proportional to 100.50 and 219 is: 477.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    100.50 : 219 = 219 : x
  2. Step 2: Convert to fraction form
    100.50/219 = 219/x
  3. Step 3: Cross multiply
    100.50x = 219 × 219
  4. Step 4: Simplify right side
    100.50x = 47,961
  5. Step 5: Solve for x
    x = 47,961/100.50
  6. Step 6: Final answer
    x = 477.22

Related Problems

Find third proportional to 50.25 and 109.50
Half scale
Find third proportional to 201 and 438
Double scale
Find third proportional to 103 and 223
Similar ratio
Find third proportional to 150.75 and 328.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.