Home / 111,269-172,331

Finding the Third Proportional to 111,269 and 172,331

Calculator

Solution

The third proportional to 111,269 and 172,331 is: 266,902.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,269 : 172,331 = 172,331 : x
  2. Step 2: Convert to fraction form
    111,269/172,331 = 172,331/x
  3. Step 3: Cross multiply
    111,269x = 172,331 × 172,331
  4. Step 4: Simplify right side
    111,269x = 29,697,973,561
  5. Step 5: Solve for x
    x = 29,697,973,561/111,269
  6. Step 6: Final answer
    x = 266,902.49

Related Problems

Find third proportional to 55,634.50 and 86,165.50
Half scale
Find third proportional to 222,538 and 344,662
Double scale
Find third proportional to 111,271 and 172,334
Similar ratio
Find third proportional to 166,903.50 and 258,496.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.