Home / 203,363-309,190

Finding the Third Proportional to 203,363 and 309,190

Calculator

Solution

The third proportional to 203,363 and 309,190 is: 470,087.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,363 : 309,190 = 309,190 : x
  2. Step 2: Convert to fraction form
    203,363/309,190 = 309,190/x
  3. Step 3: Cross multiply
    203,363x = 309,190 × 309,190
  4. Step 4: Simplify right side
    203,363x = 95,598,456,100
  5. Step 5: Solve for x
    x = 95,598,456,100/203,363
  6. Step 6: Final answer
    x = 470,087.75

Related Problems

Find third proportional to 101,681.50 and 154,595
Half scale
Find third proportional to 406,726 and 618,380
Double scale
Find third proportional to 203,365 and 309,193
Similar ratio
Find third proportional to 305,044.50 and 463,785
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.