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Finding the Fourth Proportional to 327.15, 451.40 and 185.35

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Solution

The fourth proportional to 327.15, 451.40 and 185.35 is: 255.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.15 : 451.40 = 185.35 : x
  2. Step 2: Convert to fraction form
    327.15/451.40 = 185.35/x
  3. Step 3: Cross multiply
    327.15x = 451.40 × 185.35
  4. Step 4: Simplify right side
    327.15x = 83,668.07
  5. Step 5: Solve for x
    x = 83,668.07/327.15
  6. Step 6: Final answer
    x = 255.75

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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.