Home / 259,618.15-389,467.32-109,859.28

Finding the Fourth Proportional to 259,618.15, 389,467.32 and 109,859.28

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Solution

The fourth proportional to 259,618.15, 389,467.32 and 109,859.28 is: 164,805.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,618.15 : 389,467.32 = 109,859.28 : x
  2. Step 2: Convert to fraction form
    259,618.15/389,467.32 = 109,859.28/x
  3. Step 3: Cross multiply
    259,618.15x = 389,467.32 × 109,859.28
  4. Step 4: Simplify right side
    259,618.15x = 42,786,599,358.73
  5. Step 5: Solve for x
    x = 42,786,599,358.73/259,618.15
  6. Step 6: Final answer
    x = 164,805.89

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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.