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Finding the Fourth Proportional to 247,705.76, 341,856.24 and 140,301.92

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Solution

The fourth proportional to 247,705.76, 341,856.24 and 140,301.92 is: 193,629.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,705.76 : 341,856.24 = 140,301.92 : x
  2. Step 2: Convert to fraction form
    247,705.76/341,856.24 = 140,301.92/x
  3. Step 3: Cross multiply
    247,705.76x = 341,856.24 × 140,301.92
  4. Step 4: Simplify right side
    247,705.76x = 47,963,086,835.98
  5. Step 5: Solve for x
    x = 47,963,086,835.98/247,705.76
  6. Step 6: Final answer
    x = 193,629.28

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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.