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Finding the Fourth Proportional to 247,751.96, 341,904.03 and 140,320.40

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Solution

The fourth proportional to 247,751.96, 341,904.03 and 140,320.40 is: 193,645.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,751.96 : 341,904.03 = 140,320.40 : x
  2. Step 2: Convert to fraction form
    247,751.96/341,904.03 = 140,320.40/x
  3. Step 3: Cross multiply
    247,751.96x = 341,904.03 × 140,320.40
  4. Step 4: Simplify right side
    247,751.96x = 47,976,110,251.21
  5. Step 5: Solve for x
    x = 47,976,110,251.21/247,751.96
  6. Step 6: Final answer
    x = 193,645.73

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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.