Home / 101,308-220,455

Finding the Third Proportional to 101,308 and 220,455

Calculator

Solution

The third proportional to 101,308 and 220,455 is: 479,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,308 : 220,455 = 220,455 : x
  2. Step 2: Convert to fraction form
    101,308/220,455 = 220,455/x
  3. Step 3: Cross multiply
    101,308x = 220,455 × 220,455
  4. Step 4: Simplify right side
    101,308x = 48,600,407,025
  5. Step 5: Solve for x
    x = 48,600,407,025/101,308
  6. Step 6: Final answer
    x = 479,729.21

Related Problems

Find third proportional to 50,654 and 110,227.50
Half scale
Find third proportional to 202,616 and 440,910
Double scale
Find third proportional to 101,310 and 220,459
Similar ratio
Find third proportional to 151,962 and 330,682.50
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.