Home / 144,940-311,318

Finding the Third Proportional to 144,940 and 311,318

Calculator

Solution

The third proportional to 144,940 and 311,318 is: 668,682.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,940 : 311,318 = 311,318 : x
  2. Step 2: Convert to fraction form
    144,940/311,318 = 311,318/x
  3. Step 3: Cross multiply
    144,940x = 311,318 × 311,318
  4. Step 4: Simplify right side
    144,940x = 96,918,897,124
  5. Step 5: Solve for x
    x = 96,918,897,124/144,940
  6. Step 6: Final answer
    x = 668,682.88

Related Problems

Find third proportional to 72,470 and 155,659
Half scale
Find third proportional to 289,880 and 622,636
Double scale
Find third proportional to 144,942 and 311,322
Similar ratio
Find third proportional to 217,410 and 466,977
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.