Home / 203,172-309,288

Finding the Third Proportional to 203,172 and 309,288

Calculator

Solution

The third proportional to 203,172 and 309,288 is: 470,828.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,172 : 309,288 = 309,288 : x
  2. Step 2: Convert to fraction form
    203,172/309,288 = 309,288/x
  3. Step 3: Cross multiply
    203,172x = 309,288 × 309,288
  4. Step 4: Simplify right side
    203,172x = 95,659,066,944
  5. Step 5: Solve for x
    x = 95,659,066,944/203,172
  6. Step 6: Final answer
    x = 470,828.00

Related Problems

Find third proportional to 101,586 and 154,644
Half scale
Find third proportional to 406,344 and 618,576
Double scale
Find third proportional to 203,174 and 309,291
Similar ratio
Find third proportional to 304,758 and 463,932
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.