Home / 299,905.20-449,413.92-131,269.68

Finding the Fourth Proportional to 299,905.20, 449,413.92 and 131,269.68

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Solution

The fourth proportional to 299,905.20, 449,413.92 and 131,269.68 is: 196,710.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,905.20 : 449,413.92 = 131,269.68 : x
  2. Step 2: Convert to fraction form
    299,905.20/449,413.92 = 131,269.68/x
  3. Step 3: Cross multiply
    299,905.20x = 449,413.92 × 131,269.68
  4. Step 4: Simplify right side
    299,905.20x = 58,994,421,465.95
  5. Step 5: Solve for x
    x = 58,994,421,465.95/299,905.20
  6. Step 6: Final answer
    x = 196,710.23

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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.