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Finding the Fourth Proportional to 365.28, 548.02 and 203.07

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Solution

The fourth proportional to 365.28, 548.02 and 203.07 is: 304.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.28 : 548.02 = 203.07 : x
  2. Step 2: Convert to fraction form
    365.28/548.02 = 203.07/x
  3. Step 3: Cross multiply
    365.28x = 548.02 × 203.07
  4. Step 4: Simplify right side
    365.28x = 111,287.59
  5. Step 5: Solve for x
    x = 111,287.59/365.28
  6. Step 6: Final answer
    x = 304.67

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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.