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Finding the Fourth Proportional to 255.08, 349.47 and 245.36

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Solution

The fourth proportional to 255.08, 349.47 and 245.36 is: 336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    255.08 : 349.47 = 245.36 : x
  2. Step 2: Convert to fraction form
    255.08/349.47 = 245.36/x
  3. Step 3: Cross multiply
    255.08x = 349.47 × 245.36
  4. Step 4: Simplify right side
    255.08x = 85,745.96
  5. Step 5: Solve for x
    x = 85,745.96/255.08
  6. Step 6: Final answer
    x = 336.15

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.