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Finding the Fourth Proportional to 503,729.20, 755,334.60 and 188,023.60

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Solution

The fourth proportional to 503,729.20, 755,334.60 and 188,023.60 is: 281,938.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,729.20 : 755,334.60 = 188,023.60 : x
  2. Step 2: Convert to fraction form
    503,729.20/755,334.60 = 188,023.60/x
  3. Step 3: Cross multiply
    503,729.20x = 755,334.60 × 188,023.60
  4. Step 4: Simplify right side
    503,729.20x = 142,020,730,696.56
  5. Step 5: Solve for x
    x = 142,020,730,696.56/503,729.20
  6. Step 6: Final answer
    x = 281,938.65

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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.