Home / 138,518-303,310

Finding the Third Proportional to 138,518 and 303,310

Calculator

Solution

The third proportional to 138,518 and 303,310 is: 664,151.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,518 : 303,310 = 303,310 : x
  2. Step 2: Convert to fraction form
    138,518/303,310 = 303,310/x
  3. Step 3: Cross multiply
    138,518x = 303,310 × 303,310
  4. Step 4: Simplify right side
    138,518x = 91,996,956,100
  5. Step 5: Solve for x
    x = 91,996,956,100/138,518
  6. Step 6: Final answer
    x = 664,151.63

Related Problems

Find third proportional to 69,259 and 151,655
Half scale
Find third proportional to 277,036 and 606,620
Double scale
Find third proportional to 138,520 and 303,314
Similar ratio
Find third proportional to 207,777 and 454,965
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.