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Finding the Fourth Proportional to 404,336.70, 606,942.45 and 254,745.90

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Solution

The fourth proportional to 404,336.70, 606,942.45 and 254,745.90 is: 382,394.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,336.70 : 606,942.45 = 254,745.90 : x
  2. Step 2: Convert to fraction form
    404,336.70/606,942.45 = 254,745.90/x
  3. Step 3: Cross multiply
    404,336.70x = 606,942.45 × 254,745.90
  4. Step 4: Simplify right side
    404,336.70x = 154,616,100,673.46
  5. Step 5: Solve for x
    x = 154,616,100,673.46/404,336.70
  6. Step 6: Final answer
    x = 382,394.43

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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.