Home / 378,198.40-521,906.70-206,117.68

Finding the Fourth Proportional to 378,198.40, 521,906.70 and 206,117.68

Calculator

Solution

The fourth proportional to 378,198.40, 521,906.70 and 206,117.68 is: 284,438.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,198.40 : 521,906.70 = 206,117.68 : x
  2. Step 2: Convert to fraction form
    378,198.40/521,906.70 = 206,117.68/x
  3. Step 3: Cross multiply
    378,198.40x = 521,906.70 × 206,117.68
  4. Step 4: Simplify right side
    378,198.40x = 107,574,198,180.46
  5. Step 5: Solve for x
    x = 107,574,198,180.46/378,198.40
  6. Step 6: Final answer
    x = 284,438.53

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.