Home / 259,204.05-388,569.15-219,478.82

Finding the Fourth Proportional to 259,204.05, 388,569.15 and 219,478.82

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Solution

The fourth proportional to 259,204.05, 388,569.15 and 219,478.82 is: 329,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,204.05 : 388,569.15 = 219,478.82 : x
  2. Step 2: Convert to fraction form
    259,204.05/388,569.15 = 219,478.82/x
  3. Step 3: Cross multiply
    259,204.05x = 388,569.15 × 219,478.82
  4. Step 4: Simplify right side
    259,204.05x = 85,282,696,587.56
  5. Step 5: Solve for x
    x = 85,282,696,587.56/259,204.05
  6. Step 6: Final answer
    x = 329,017.61

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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.