Home / 203,487-278,844

Finding the Third Proportional to 203,487 and 278,844

Calculator

Solution

The third proportional to 203,487 and 278,844 is: 382,107.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,487 : 278,844 = 278,844 : x
  2. Step 2: Convert to fraction form
    203,487/278,844 = 278,844/x
  3. Step 3: Cross multiply
    203,487x = 278,844 × 278,844
  4. Step 4: Simplify right side
    203,487x = 77,753,976,336
  5. Step 5: Solve for x
    x = 77,753,976,336/203,487
  6. Step 6: Final answer
    x = 382,107.83

Related Problems

Find third proportional to 101,743.50 and 139,422
Half scale
Find third proportional to 406,974 and 557,688
Double scale
Find third proportional to 203,489 and 278,847
Similar ratio
Find third proportional to 305,230.50 and 418,266
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.