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Finding the Fourth Proportional to 300,349, 414,481.62 and 166,221.64

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Solution

The fourth proportional to 300,349, 414,481.62 and 166,221.64 is: 229,385.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,349 : 414,481.62 = 166,221.64 : x
  2. Step 2: Convert to fraction form
    300,349/414,481.62 = 166,221.64/x
  3. Step 3: Cross multiply
    300,349x = 414,481.62 × 166,221.64
  4. Step 4: Simplify right side
    300,349x = 68,895,814,626.26
  5. Step 5: Solve for x
    x = 68,895,814,626.26/300,349
  6. Step 6: Final answer
    x = 229,385.86

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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.