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Finding the Fourth Proportional to 379,101.62, 568,641.49 and 154,406.50

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Solution

The fourth proportional to 379,101.62, 568,641.49 and 154,406.50 is: 231,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,101.62 : 568,641.49 = 154,406.50 : x
  2. Step 2: Convert to fraction form
    379,101.62/568,641.49 = 154,406.50/x
  3. Step 3: Cross multiply
    379,101.62x = 568,641.49 × 154,406.50
  4. Step 4: Simplify right side
    379,101.62x = 87,801,940,418.07
  5. Step 5: Solve for x
    x = 87,801,940,418.07/379,101.62
  6. Step 6: Final answer
    x = 231,605.29

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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.