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Finding the Fourth Proportional to 365.56, 548.46 and 228.70

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Solution

The fourth proportional to 365.56, 548.46 and 228.70 is: 343.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.56 : 548.46 = 228.70 : x
  2. Step 2: Convert to fraction form
    365.56/548.46 = 228.70/x
  3. Step 3: Cross multiply
    365.56x = 548.46 × 228.70
  4. Step 4: Simplify right side
    365.56x = 125,432.80
  5. Step 5: Solve for x
    x = 125,432.80/365.56
  6. Step 6: Final answer
    x = 343.13

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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.