Home / 203,190-316,419

Finding the Third Proportional to 203,190 and 316,419

Calculator

Solution

The third proportional to 203,190 and 316,419 is: 492,745.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,190 : 316,419 = 316,419 : x
  2. Step 2: Convert to fraction form
    203,190/316,419 = 316,419/x
  3. Step 3: Cross multiply
    203,190x = 316,419 × 316,419
  4. Step 4: Simplify right side
    203,190x = 100,120,983,561
  5. Step 5: Solve for x
    x = 100,120,983,561/203,190
  6. Step 6: Final answer
    x = 492,745.63

Related Problems

Find third proportional to 101,595 and 158,209.50
Half scale
Find third proportional to 406,380 and 632,838
Double scale
Find third proportional to 203,192 and 316,422
Similar ratio
Find third proportional to 304,785 and 474,628.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.