Home / 203,472-311,280

Finding the Third Proportional to 203,472 and 311,280

Calculator

Solution

The third proportional to 203,472 and 311,280 is: 476,209.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,472 : 311,280 = 311,280 : x
  2. Step 2: Convert to fraction form
    203,472/311,280 = 311,280/x
  3. Step 3: Cross multiply
    203,472x = 311,280 × 311,280
  4. Step 4: Simplify right side
    203,472x = 96,895,238,400
  5. Step 5: Solve for x
    x = 96,895,238,400/203,472
  6. Step 6: Final answer
    x = 476,209.20

Related Problems

Find third proportional to 101,736 and 155,640
Half scale
Find third proportional to 406,944 and 622,560
Double scale
Find third proportional to 203,474 and 311,283
Similar ratio
Find third proportional to 305,208 and 466,920
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.