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Finding the Fourth Proportional to 247,128, 341,037 and 133,951.92

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Solution

The fourth proportional to 247,128, 341,037 and 133,951.92 is: 184,853.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,128 : 341,037 = 133,951.92 : x
  2. Step 2: Convert to fraction form
    247,128/341,037 = 133,951.92/x
  3. Step 3: Cross multiply
    247,128x = 341,037 × 133,951.92
  4. Step 4: Simplify right side
    247,128x = 45,682,560,941.04
  5. Step 5: Solve for x
    x = 45,682,560,941.04/247,128
  6. Step 6: Final answer
    x = 184,853.84

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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.