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Finding the Fourth Proportional to 365.75, 548.88 and 228.89

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Solution

The fourth proportional to 365.75, 548.88 and 228.89 is: 343.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.75 : 548.88 = 228.89 : x
  2. Step 2: Convert to fraction form
    365.75/548.88 = 228.89/x
  3. Step 3: Cross multiply
    365.75x = 548.88 × 228.89
  4. Step 4: Simplify right side
    365.75x = 125,633.66
  5. Step 5: Solve for x
    x = 125,633.66/365.75
  6. Step 6: Final answer
    x = 343.50

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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.