Home / 203,540-311,370

Finding the Third Proportional to 203,540 and 311,370

Calculator

Solution

The third proportional to 203,540 and 311,370 is: 476,325.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,540 : 311,370 = 311,370 : x
  2. Step 2: Convert to fraction form
    203,540/311,370 = 311,370/x
  3. Step 3: Cross multiply
    203,540x = 311,370 × 311,370
  4. Step 4: Simplify right side
    203,540x = 96,951,276,900
  5. Step 5: Solve for x
    x = 96,951,276,900/203,540
  6. Step 6: Final answer
    x = 476,325.42

Related Problems

Find third proportional to 101,770 and 155,685
Half scale
Find third proportional to 407,080 and 622,740
Double scale
Find third proportional to 203,542 and 311,373
Similar ratio
Find third proportional to 305,310 and 467,055
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.