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Finding the Fourth Proportional to 365.26, 548.02 and 228.15

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Solution

The fourth proportional to 365.26, 548.02 and 228.15 is: 342.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.26 : 548.02 = 228.15 : x
  2. Step 2: Convert to fraction form
    365.26/548.02 = 228.15/x
  3. Step 3: Cross multiply
    365.26x = 548.02 × 228.15
  4. Step 4: Simplify right side
    365.26x = 125,031.05
  5. Step 5: Solve for x
    x = 125,031.05/365.26
  6. Step 6: Final answer
    x = 342.31

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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.