Home / 71,380-155,472

Finding the Third Proportional to 71,380 and 155,472

Calculator

Solution

The third proportional to 71,380 and 155,472 is: 338,631.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,380 : 155,472 = 155,472 : x
  2. Step 2: Convert to fraction form
    71,380/155,472 = 155,472/x
  3. Step 3: Cross multiply
    71,380x = 155,472 × 155,472
  4. Step 4: Simplify right side
    71,380x = 24,171,542,784
  5. Step 5: Solve for x
    x = 24,171,542,784/71,380
  6. Step 6: Final answer
    x = 338,631.87

Related Problems

Find third proportional to 35,690 and 77,736
Half scale
Find third proportional to 142,760 and 310,944
Double scale
Find third proportional to 71,382 and 155,476
Similar ratio
Find third proportional to 107,070 and 233,208
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.