Home / 203,110-315,910

Finding the Third Proportional to 203,110 and 315,910

Calculator

Solution

The third proportional to 203,110 and 315,910 is: 491,355.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,110 : 315,910 = 315,910 : x
  2. Step 2: Convert to fraction form
    203,110/315,910 = 315,910/x
  3. Step 3: Cross multiply
    203,110x = 315,910 × 315,910
  4. Step 4: Simplify right side
    203,110x = 99,799,128,100
  5. Step 5: Solve for x
    x = 99,799,128,100/203,110
  6. Step 6: Final answer
    x = 491,355.07

Related Problems

Find third proportional to 101,555 and 157,955
Half scale
Find third proportional to 406,220 and 631,820
Double scale
Find third proportional to 203,112 and 315,913
Similar ratio
Find third proportional to 304,665 and 473,865
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.