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Finding the Fourth Proportional to 503,734.20, 755,342.10 and 188,028.60

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Solution

The fourth proportional to 503,734.20, 755,342.10 and 188,028.60 is: 281,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,734.20 : 755,342.10 = 188,028.60 : x
  2. Step 2: Convert to fraction form
    503,734.20/755,342.10 = 188,028.60/x
  3. Step 3: Cross multiply
    503,734.20x = 755,342.10 × 188,028.60
  4. Step 4: Simplify right side
    503,734.20x = 142,025,917,584.06
  5. Step 5: Solve for x
    x = 142,025,917,584.06/503,734.20
  6. Step 6: Final answer
    x = 281,946.15

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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.