Home / 155,907-222,912

Finding the Third Proportional to 155,907 and 222,912

Calculator

Solution

The third proportional to 155,907 and 222,912 is: 318,714.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,907 : 222,912 = 222,912 : x
  2. Step 2: Convert to fraction form
    155,907/222,912 = 222,912/x
  3. Step 3: Cross multiply
    155,907x = 222,912 × 222,912
  4. Step 4: Simplify right side
    155,907x = 49,689,759,744
  5. Step 5: Solve for x
    x = 49,689,759,744/155,907
  6. Step 6: Final answer
    x = 318,714.10

Related Problems

Find third proportional to 77,953.50 and 111,456
Half scale
Find third proportional to 311,814 and 445,824
Double scale
Find third proportional to 155,909 and 222,915
Similar ratio
Find third proportional to 233,860.50 and 334,368
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.