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Finding the Fourth Proportional to 299,413.80, 449,183.10 and 99,796.20

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Solution

The fourth proportional to 299,413.80, 449,183.10 and 99,796.20 is: 149,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,413.80 : 449,183.10 = 99,796.20 : x
  2. Step 2: Convert to fraction form
    299,413.80/449,183.10 = 99,796.20/x
  3. Step 3: Cross multiply
    299,413.80x = 449,183.10 × 99,796.20
  4. Step 4: Simplify right side
    299,413.80x = 44,826,766,484.22
  5. Step 5: Solve for x
    x = 44,826,766,484.22/299,413.80
  6. Step 6: Final answer
    x = 149,715.10

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1.5x scale

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.