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Finding the Fourth Proportional to 309,288.54, 463,145.25 and 203,787.66

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Solution

The fourth proportional to 309,288.54, 463,145.25 and 203,787.66 is: 305,162.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,288.54 : 463,145.25 = 203,787.66 : x
  2. Step 2: Convert to fraction form
    309,288.54/463,145.25 = 203,787.66/x
  3. Step 3: Cross multiply
    309,288.54x = 463,145.25 × 203,787.66
  4. Step 4: Simplify right side
    309,288.54x = 94,383,286,737.62
  5. Step 5: Solve for x
    x = 94,383,286,737.62/309,288.54
  6. Step 6: Final answer
    x = 305,162.57

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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.