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Finding the Fourth Proportional to 511.25, 705.69 and 327.25

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Solution

The fourth proportional to 511.25, 705.69 and 327.25 is: 451.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    511.25 : 705.69 = 327.25 : x
  2. Step 2: Convert to fraction form
    511.25/705.69 = 327.25/x
  3. Step 3: Cross multiply
    511.25x = 705.69 × 327.25
  4. Step 4: Simplify right side
    511.25x = 230,937.05
  5. Step 5: Solve for x
    x = 230,937.05/511.25
  6. Step 6: Final answer
    x = 451.71

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.