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Finding the Fourth Proportional to 247,906.64, 342,112.20 and 147,302.48

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Solution

The fourth proportional to 247,906.64, 342,112.20 and 147,302.48 is: 203,278.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,906.64 : 342,112.20 = 147,302.48 : x
  2. Step 2: Convert to fraction form
    247,906.64/342,112.20 = 147,302.48/x
  3. Step 3: Cross multiply
    247,906.64x = 342,112.20 × 147,302.48
  4. Step 4: Simplify right side
    247,906.64x = 50,393,975,498.26
  5. Step 5: Solve for x
    x = 50,393,975,498.26/247,906.64
  6. Step 6: Final answer
    x = 203,278.04

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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.