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Finding the Fourth Proportional to 154,299.31, 231,447.31 and 117,087.91

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Solution

The fourth proportional to 154,299.31, 231,447.31 and 117,087.91 is: 175,630.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,299.31 : 231,447.31 = 117,087.91 : x
  2. Step 2: Convert to fraction form
    154,299.31/231,447.31 = 117,087.91/x
  3. Step 3: Cross multiply
    154,299.31x = 231,447.31 × 117,087.91
  4. Step 4: Simplify right side
    154,299.31x = 27,099,680,353.07
  5. Step 5: Solve for x
    x = 27,099,680,353.07/154,299.31
  6. Step 6: Final answer
    x = 175,630.61

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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.