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Finding the Fourth Proportional to 247,385.86, 341,391.78 and 134,208.64

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Solution

The fourth proportional to 247,385.86, 341,391.78 and 134,208.64 is: 185,207.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,385.86 : 341,391.78 = 134,208.64 : x
  2. Step 2: Convert to fraction form
    247,385.86/341,391.78 = 134,208.64/x
  3. Step 3: Cross multiply
    247,385.86x = 341,391.78 × 134,208.64
  4. Step 4: Simplify right side
    247,385.86x = 45,817,726,500.98
  5. Step 5: Solve for x
    x = 45,817,726,500.98/247,385.86
  6. Step 6: Final answer
    x = 185,207.54

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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.