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Finding the Fourth Proportional to 353,299.44, 487,363.96 and 245,682.64

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Solution

The fourth proportional to 353,299.44, 487,363.96 and 245,682.64 is: 338,910.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,299.44 : 487,363.96 = 245,682.64 : x
  2. Step 2: Convert to fraction form
    353,299.44/487,363.96 = 245,682.64/x
  3. Step 3: Cross multiply
    353,299.44x = 487,363.96 × 245,682.64
  4. Step 4: Simplify right side
    353,299.44x = 119,736,864,333.65
  5. Step 5: Solve for x
    x = 119,736,864,333.65/353,299.44
  6. Step 6: Final answer
    x = 338,910.43

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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.