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Finding the Fourth Proportional to 203,860.80, 305,791.20 and 151,372.80

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Solution

The fourth proportional to 203,860.80, 305,791.20 and 151,372.80 is: 227,059.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,860.80 : 305,791.20 = 151,372.80 : x
  2. Step 2: Convert to fraction form
    203,860.80/305,791.20 = 151,372.80/x
  3. Step 3: Cross multiply
    203,860.80x = 305,791.20 × 151,372.80
  4. Step 4: Simplify right side
    203,860.80x = 46,288,470,159.36
  5. Step 5: Solve for x
    x = 46,288,470,159.36/203,860.80
  6. Step 6: Final answer
    x = 227,059.20

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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.