Home / 131,820-311,047

Finding the Third Proportional to 131,820 and 311,047

Calculator

Solution

The third proportional to 131,820 and 311,047 is: 733,957.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,820 : 311,047 = 311,047 : x
  2. Step 2: Convert to fraction form
    131,820/311,047 = 311,047/x
  3. Step 3: Cross multiply
    131,820x = 311,047 × 311,047
  4. Step 4: Simplify right side
    131,820x = 96,750,236,209
  5. Step 5: Solve for x
    x = 96,750,236,209/131,820
  6. Step 6: Final answer
    x = 733,957.19

Related Problems

Find third proportional to 65,910 and 155,523.50
Half scale
Find third proportional to 263,640 and 622,094
Double scale
Find third proportional to 131,822 and 311,052
Similar ratio
Find third proportional to 197,730 and 466,570.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.