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Finding the Fourth Proportional to 312,238.62, 430,892.84 and 183,179.30

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Solution

The fourth proportional to 312,238.62, 430,892.84 and 183,179.30 is: 252,789.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,238.62 : 430,892.84 = 183,179.30 : x
  2. Step 2: Convert to fraction form
    312,238.62/430,892.84 = 183,179.30/x
  3. Step 3: Cross multiply
    312,238.62x = 430,892.84 × 183,179.30
  4. Step 4: Simplify right side
    312,238.62x = 78,930,645,735.85
  5. Step 5: Solve for x
    x = 78,930,645,735.85/312,238.62
  6. Step 6: Final answer
    x = 252,789.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.