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Finding the Fourth Proportional to 247,809.63, 371,833.47 and 135,485.31

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Solution

The fourth proportional to 247,809.63, 371,833.47 and 135,485.31 is: 203,293.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,809.63 : 371,833.47 = 135,485.31 : x
  2. Step 2: Convert to fraction form
    247,809.63/371,833.47 = 135,485.31/x
  3. Step 3: Cross multiply
    247,809.63x = 371,833.47 × 135,485.31
  4. Step 4: Simplify right side
    247,809.63x = 50,377,972,951.33
  5. Step 5: Solve for x
    x = 50,377,972,951.33/247,809.63
  6. Step 6: Final answer
    x = 203,293.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.