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Finding the Fourth Proportional to 252,782.91, 379,153.61 and 75,289.94

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Solution

The fourth proportional to 252,782.91, 379,153.61 and 75,289.94 is: 112,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,782.91 : 379,153.61 = 75,289.94 : x
  2. Step 2: Convert to fraction form
    252,782.91/379,153.61 = 75,289.94/x
  3. Step 3: Cross multiply
    252,782.91x = 379,153.61 × 75,289.94
  4. Step 4: Simplify right side
    252,782.91x = 28,546,451,979.63
  5. Step 5: Solve for x
    x = 28,546,451,979.63/252,782.91
  6. Step 6: Final answer
    x = 112,928.73

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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.