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Finding the Fourth Proportional to 379,108.40, 568,651.59 and 154,413.27

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Solution

The fourth proportional to 379,108.40, 568,651.59 and 154,413.27 is: 231,615.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,108.40 : 568,651.59 = 154,413.27 : x
  2. Step 2: Convert to fraction form
    379,108.40/568,651.59 = 154,413.27/x
  3. Step 3: Cross multiply
    379,108.40x = 568,651.59 × 154,413.27
  4. Step 4: Simplify right side
    379,108.40x = 87,807,351,502.60
  5. Step 5: Solve for x
    x = 87,807,351,502.60/379,108.40
  6. Step 6: Final answer
    x = 231,615.42

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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.