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Finding the Fourth Proportional to 944.11, 1,415.83 and 327.65

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Solution

The fourth proportional to 944.11, 1,415.83 and 327.65 is: 491.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    944.11 : 1,415.83 = 327.65 : x
  2. Step 2: Convert to fraction form
    944.11/1,415.83 = 327.65/x
  3. Step 3: Cross multiply
    944.11x = 1,415.83 × 327.65
  4. Step 4: Simplify right side
    944.11x = 463,896.70
  5. Step 5: Solve for x
    x = 463,896.70/944.11
  6. Step 6: Final answer
    x = 491.36

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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.