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Finding the Fourth Proportional to 247,380.84, 341,383.55 and 139,950

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Solution

The fourth proportional to 247,380.84, 341,383.55 and 139,950 is: 193,129.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,380.84 : 341,383.55 = 139,950 : x
  2. Step 2: Convert to fraction form
    247,380.84/341,383.55 = 139,950/x
  3. Step 3: Cross multiply
    247,380.84x = 341,383.55 × 139,950
  4. Step 4: Simplify right side
    247,380.84x = 47,776,627,122.75
  5. Step 5: Solve for x
    x = 47,776,627,122.75/247,380.84
  6. Step 6: Final answer
    x = 193,129.86

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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.