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Finding the Fourth Proportional to 367.21, 551.01 and 245.53

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Solution

The fourth proportional to 367.21, 551.01 and 245.53 is: 368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.21 : 551.01 = 245.53 : x
  2. Step 2: Convert to fraction form
    367.21/551.01 = 245.53/x
  3. Step 3: Cross multiply
    367.21x = 551.01 × 245.53
  4. Step 4: Simplify right side
    367.21x = 135,289.49
  5. Step 5: Solve for x
    x = 135,289.49/367.21
  6. Step 6: Final answer
    x = 368.43

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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.