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Finding the Fourth Proportional to 247,133.28, 341,043.60 and 133,956

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Solution

The fourth proportional to 247,133.28, 341,043.60 and 133,956 is: 184,859.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,133.28 : 341,043.60 = 133,956 : x
  2. Step 2: Convert to fraction form
    247,133.28/341,043.60 = 133,956/x
  3. Step 3: Cross multiply
    247,133.28x = 341,043.60 × 133,956
  4. Step 4: Simplify right side
    247,133.28x = 45,684,836,481.60
  5. Step 5: Solve for x
    x = 45,684,836,481.60/247,133.28
  6. Step 6: Final answer
    x = 184,859.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.