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Finding the Fourth Proportional to 268,447.05, 401,794.38 and 197,350.86

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Solution

The fourth proportional to 268,447.05, 401,794.38 and 197,350.86 is: 295,382.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,447.05 : 401,794.38 = 197,350.86 : x
  2. Step 2: Convert to fraction form
    268,447.05/401,794.38 = 197,350.86/x
  3. Step 3: Cross multiply
    268,447.05x = 401,794.38 × 197,350.86
  4. Step 4: Simplify right side
    268,447.05x = 79,294,466,436.17
  5. Step 5: Solve for x
    x = 79,294,466,436.17/268,447.05
  6. Step 6: Final answer
    x = 295,382.15

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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.