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Finding the Fourth Proportional to 255.91, 352.69 and 185.00

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Solution

The fourth proportional to 255.91, 352.69 and 185.00 is: 254.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.91 : 352.69 = 185.00 : x
  2. Step 2: Convert to fraction form
    255.91/352.69 = 185.00/x
  3. Step 3: Cross multiply
    255.91x = 352.69 × 185.00
  4. Step 4: Simplify right side
    255.91x = 65,246.70
  5. Step 5: Solve for x
    x = 65,246.70/255.91
  6. Step 6: Final answer
    x = 254.96

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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.