Home / 245,351-378,881

Finding the Third Proportional to 245,351 and 378,881

Calculator

Solution

The third proportional to 245,351 and 378,881 is: 585,083.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,351 : 378,881 = 378,881 : x
  2. Step 2: Convert to fraction form
    245,351/378,881 = 378,881/x
  3. Step 3: Cross multiply
    245,351x = 378,881 × 378,881
  4. Step 4: Simplify right side
    245,351x = 143,550,812,161
  5. Step 5: Solve for x
    x = 143,550,812,161/245,351
  6. Step 6: Final answer
    x = 585,083.46

Related Problems

Find third proportional to 122,675.50 and 189,440.50
Half scale
Find third proportional to 490,702 and 757,762
Double scale
Find third proportional to 245,353 and 378,884
Similar ratio
Find third proportional to 368,026.50 and 568,321.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.