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Finding the Fourth Proportional to 444,609.20, 666,460.20 and 219,623.60

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Solution

The fourth proportional to 444,609.20, 666,460.20 and 219,623.60 is: 329,211.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,609.20 : 666,460.20 = 219,623.60 : x
  2. Step 2: Convert to fraction form
    444,609.20/666,460.20 = 219,623.60/x
  3. Step 3: Cross multiply
    444,609.20x = 666,460.20 × 219,623.60
  4. Step 4: Simplify right side
    444,609.20x = 146,370,388,380.72
  5. Step 5: Solve for x
    x = 146,370,388,380.72/444,609.20
  6. Step 6: Final answer
    x = 329,211.34

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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.