Home / 138,947-303,318

Finding the Third Proportional to 138,947 and 303,318

Calculator

Solution

The third proportional to 138,947 and 303,318 is: 662,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,947 : 303,318 = 303,318 : x
  2. Step 2: Convert to fraction form
    138,947/303,318 = 303,318/x
  3. Step 3: Cross multiply
    138,947x = 303,318 × 303,318
  4. Step 4: Simplify right side
    138,947x = 92,001,809,124
  5. Step 5: Solve for x
    x = 92,001,809,124/138,947
  6. Step 6: Final answer
    x = 662,135.99

Related Problems

Find third proportional to 69,473.50 and 151,659
Half scale
Find third proportional to 277,894 and 606,636
Double scale
Find third proportional to 138,949 and 303,322
Similar ratio
Find third proportional to 208,420.50 and 454,977
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.