Home / 140,100-311,304

Finding the Third Proportional to 140,100 and 311,304

Calculator

Solution

The third proportional to 140,100 and 311,304 is: 691,721.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,100 : 311,304 = 311,304 : x
  2. Step 2: Convert to fraction form
    140,100/311,304 = 311,304/x
  3. Step 3: Cross multiply
    140,100x = 311,304 × 311,304
  4. Step 4: Simplify right side
    140,100x = 96,910,180,416
  5. Step 5: Solve for x
    x = 96,910,180,416/140,100
  6. Step 6: Final answer
    x = 691,721.49

Related Problems

Find third proportional to 70,050 and 155,652
Half scale
Find third proportional to 280,200 and 622,608
Double scale
Find third proportional to 140,102 and 311,308
Similar ratio
Find third proportional to 210,150 and 466,956
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.