Home / 72,981-155,378

Finding the Third Proportional to 72,981 and 155,378

Calculator

Solution

The third proportional to 72,981 and 155,378 is: 330,802.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,981 : 155,378 = 155,378 : x
  2. Step 2: Convert to fraction form
    72,981/155,378 = 155,378/x
  3. Step 3: Cross multiply
    72,981x = 155,378 × 155,378
  4. Step 4: Simplify right side
    72,981x = 24,142,322,884
  5. Step 5: Solve for x
    x = 24,142,322,884/72,981
  6. Step 6: Final answer
    x = 330,802.85

Related Problems

Find third proportional to 36,490.50 and 77,689
Half scale
Find third proportional to 145,962 and 310,756
Double scale
Find third proportional to 72,983 and 155,382
Similar ratio
Find third proportional to 109,471.50 and 233,067
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.