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Finding the Fourth Proportional to 302.34, 452.49 and 225.42

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Solution

The fourth proportional to 302.34, 452.49 and 225.42 is: 337.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.34 : 452.49 = 225.42 : x
  2. Step 2: Convert to fraction form
    302.34/452.49 = 225.42/x
  3. Step 3: Cross multiply
    302.34x = 452.49 × 225.42
  4. Step 4: Simplify right side
    302.34x = 102,000.30
  5. Step 5: Solve for x
    x = 102,000.30/302.34
  6. Step 6: Final answer
    x = 337.37

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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.