Home / 228,578.82-342,890.76-78,799.38

Finding the Fourth Proportional to 228,578.82, 342,890.76 and 78,799.38

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Solution

The fourth proportional to 228,578.82, 342,890.76 and 78,799.38 is: 118,206.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,578.82 : 342,890.76 = 78,799.38 : x
  2. Step 2: Convert to fraction form
    228,578.82/342,890.76 = 78,799.38/x
  3. Step 3: Cross multiply
    228,578.82x = 342,890.76 × 78,799.38
  4. Step 4: Simplify right side
    228,578.82x = 27,019,579,295.73
  5. Step 5: Solve for x
    x = 27,019,579,295.73/228,578.82
  6. Step 6: Final answer
    x = 118,206.84

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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.