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Finding the Fourth Proportional to 203,751.20, 305,024.16 and 151,392.80

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Solution

The fourth proportional to 203,751.20, 305,024.16 and 151,392.80 is: 226,641.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,751.20 : 305,024.16 = 151,392.80 : x
  2. Step 2: Convert to fraction form
    203,751.20/305,024.16 = 151,392.80/x
  3. Step 3: Cross multiply
    203,751.20x = 305,024.16 × 151,392.80
  4. Step 4: Simplify right side
    203,751.20x = 46,178,461,650.05
  5. Step 5: Solve for x
    x = 46,178,461,650.05/203,751.20
  6. Step 6: Final answer
    x = 226,641.42

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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.