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Finding the Fourth Proportional to 408,032.37, 612,047.34 and 108,512.70

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Solution

The fourth proportional to 408,032.37, 612,047.34 and 108,512.70 is: 162,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,032.37 : 612,047.34 = 108,512.70 : x
  2. Step 2: Convert to fraction form
    408,032.37/612,047.34 = 108,512.70/x
  3. Step 3: Cross multiply
    408,032.37x = 612,047.34 × 108,512.70
  4. Step 4: Simplify right side
    408,032.37x = 66,414,907,096.04
  5. Step 5: Solve for x
    x = 66,414,907,096.04/408,032.37
  6. Step 6: Final answer
    x = 162,768.72

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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.