Home / 378,941.58-568,110.51-218,835.81

Finding the Fourth Proportional to 378,941.58, 568,110.51 and 218,835.81

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Solution

The fourth proportional to 378,941.58, 568,110.51 and 218,835.81 is: 328,079.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,941.58 : 568,110.51 = 218,835.81 : x
  2. Step 2: Convert to fraction form
    378,941.58/568,110.51 = 218,835.81/x
  3. Step 3: Cross multiply
    378,941.58x = 568,110.51 × 218,835.81
  4. Step 4: Simplify right side
    378,941.58x = 124,322,923,625.36
  5. Step 5: Solve for x
    x = 124,322,923,625.36/378,941.58
  6. Step 6: Final answer
    x = 328,079.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.