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Finding the Fourth Proportional to 543,147.90, 814,819.05 and 227,636.70

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Solution

The fourth proportional to 543,147.90, 814,819.05 and 227,636.70 is: 341,495.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,147.90 : 814,819.05 = 227,636.70 : x
  2. Step 2: Convert to fraction form
    543,147.90/814,819.05 = 227,636.70/x
  3. Step 3: Cross multiply
    543,147.90x = 814,819.05 × 227,636.70
  4. Step 4: Simplify right side
    543,147.90x = 185,482,719,639.14
  5. Step 5: Solve for x
    x = 185,482,719,639.14/543,147.90
  6. Step 6: Final answer
    x = 341,495.79

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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.