Home / 140,208-305,790

Finding the Third Proportional to 140,208 and 305,790

Calculator

Solution

The third proportional to 140,208 and 305,790 is: 666,920.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,208 : 305,790 = 305,790 : x
  2. Step 2: Convert to fraction form
    140,208/305,790 = 305,790/x
  3. Step 3: Cross multiply
    140,208x = 305,790 × 305,790
  4. Step 4: Simplify right side
    140,208x = 93,507,524,100
  5. Step 5: Solve for x
    x = 93,507,524,100/140,208
  6. Step 6: Final answer
    x = 666,920.03

Related Problems

Find third proportional to 70,104 and 152,895
Half scale
Find third proportional to 280,416 and 611,580
Double scale
Find third proportional to 140,210 and 305,794
Similar ratio
Find third proportional to 210,312 and 458,685
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.