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Finding the Fourth Proportional to 300,252.25, 450,124 and 131,644.79

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Solution

The fourth proportional to 300,252.25, 450,124 and 131,644.79 is: 197,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,252.25 : 450,124 = 131,644.79 : x
  2. Step 2: Convert to fraction form
    300,252.25/450,124 = 131,644.79/x
  3. Step 3: Cross multiply
    300,252.25x = 450,124 × 131,644.79
  4. Step 4: Simplify right side
    300,252.25x = 59,256,479,453.96
  5. Step 5: Solve for x
    x = 59,256,479,453.96/300,252.25
  6. Step 6: Final answer
    x = 197,355.65

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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.