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Finding the Fourth Proportional to 366,978.60, 550,467.90 and 219,522.60

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Solution

The fourth proportional to 366,978.60, 550,467.90 and 219,522.60 is: 329,283.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,978.60 : 550,467.90 = 219,522.60 : x
  2. Step 2: Convert to fraction form
    366,978.60/550,467.90 = 219,522.60/x
  3. Step 3: Cross multiply
    366,978.60x = 550,467.90 × 219,522.60
  4. Step 4: Simplify right side
    366,978.60x = 120,840,144,624.54
  5. Step 5: Solve for x
    x = 120,840,144,624.54/366,978.60
  6. Step 6: Final answer
    x = 329,283.90

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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.