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Finding the Fourth Proportional to 379,109.13, 568,652.72 and 154,413.98

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Solution

The fourth proportional to 379,109.13, 568,652.72 and 154,413.98 is: 231,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,109.13 : 568,652.72 = 154,413.98 : x
  2. Step 2: Convert to fraction form
    379,109.13/568,652.72 = 154,413.98/x
  3. Step 3: Cross multiply
    379,109.13x = 568,652.72 × 154,413.98
  4. Step 4: Simplify right side
    379,109.13x = 87,807,926,117.69
  5. Step 5: Solve for x
    x = 87,807,926,117.69/379,109.13
  6. Step 6: Final answer
    x = 231,616.49

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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.