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Finding the Fourth Proportional to 446,481.22, 669,814.10 and 146,979.78

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Solution

The fourth proportional to 446,481.22, 669,814.10 and 146,979.78 is: 220,500.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,481.22 : 669,814.10 = 146,979.78 : x
  2. Step 2: Convert to fraction form
    446,481.22/669,814.10 = 146,979.78/x
  3. Step 3: Cross multiply
    446,481.22x = 669,814.10 × 146,979.78
  4. Step 4: Simplify right side
    446,481.22x = 98,449,129,058.90
  5. Step 5: Solve for x
    x = 98,449,129,058.90/446,481.22
  6. Step 6: Final answer
    x = 220,500.04

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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.