Home / 311,948-445,761

Finding the Third Proportional to 311,948 and 445,761

Calculator

Solution

The third proportional to 311,948 and 445,761 is: 636,974.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,948 : 445,761 = 445,761 : x
  2. Step 2: Convert to fraction form
    311,948/445,761 = 445,761/x
  3. Step 3: Cross multiply
    311,948x = 445,761 × 445,761
  4. Step 4: Simplify right side
    311,948x = 198,702,869,121
  5. Step 5: Solve for x
    x = 198,702,869,121/311,948
  6. Step 6: Final answer
    x = 636,974.33

Related Problems

Find third proportional to 155,974 and 222,880.50
Half scale
Find third proportional to 623,896 and 891,522
Double scale
Find third proportional to 311,950 and 445,764
Similar ratio
Find third proportional to 467,922 and 668,641.50
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.