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Finding the Fourth Proportional to 299,603.12, 449,413.88 and 131,036.72

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Solution

The fourth proportional to 299,603.12, 449,413.88 and 131,036.72 is: 196,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,603.12 : 449,413.88 = 131,036.72 : x
  2. Step 2: Convert to fraction form
    299,603.12/449,413.88 = 131,036.72/x
  3. Step 3: Cross multiply
    299,603.12x = 449,413.88 × 131,036.72
  4. Step 4: Simplify right side
    299,603.12x = 58,889,720,757.67
  5. Step 5: Solve for x
    x = 58,889,720,757.67/299,603.12
  6. Step 6: Final answer
    x = 196,559.10

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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.