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Finding the Fourth Proportional to 322,617.99, 445,224.26 and 177,435

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Solution

The fourth proportional to 322,617.99, 445,224.26 and 177,435 is: 244,866.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,617.99 : 445,224.26 = 177,435 : x
  2. Step 2: Convert to fraction form
    322,617.99/445,224.26 = 177,435/x
  3. Step 3: Cross multiply
    322,617.99x = 445,224.26 × 177,435
  4. Step 4: Simplify right side
    322,617.99x = 78,998,366,573.10
  5. Step 5: Solve for x
    x = 78,998,366,573.10/322,617.99
  6. Step 6: Final answer
    x = 244,866.59

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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.