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Finding the Fourth Proportional to 247,707.76, 341,859 and 140,303.92

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Solution

The fourth proportional to 247,707.76, 341,859 and 140,303.92 is: 193,632.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,707.76 : 341,859 = 140,303.92 : x
  2. Step 2: Convert to fraction form
    247,707.76/341,859 = 140,303.92/x
  3. Step 3: Cross multiply
    247,707.76x = 341,859 × 140,303.92
  4. Step 4: Simplify right side
    247,707.76x = 47,964,157,787.28
  5. Step 5: Solve for x
    x = 47,964,157,787.28/247,707.76
  6. Step 6: Final answer
    x = 193,632.04

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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.