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Finding the Fourth Proportional to 253,959.72, 381,413.70 and 223,575.68

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Solution

The fourth proportional to 253,959.72, 381,413.70 and 223,575.68 is: 335,780.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,959.72 : 381,413.70 = 223,575.68 : x
  2. Step 2: Convert to fraction form
    253,959.72/381,413.70 = 223,575.68/x
  3. Step 3: Cross multiply
    253,959.72x = 381,413.70 × 223,575.68
  4. Step 4: Simplify right side
    253,959.72x = 85,274,825,431.75
  5. Step 5: Solve for x
    x = 85,274,825,431.75/253,959.72
  6. Step 6: Final answer
    x = 335,780.91

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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.