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Finding the Fourth Proportional to 296.03, 408.56 and 225.99

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Solution

The fourth proportional to 296.03, 408.56 and 225.99 is: 311.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.03 : 408.56 = 225.99 : x
  2. Step 2: Convert to fraction form
    296.03/408.56 = 225.99/x
  3. Step 3: Cross multiply
    296.03x = 408.56 × 225.99
  4. Step 4: Simplify right side
    296.03x = 92,329.34
  5. Step 5: Solve for x
    x = 92,329.34/296.03
  6. Step 6: Final answer
    x = 311.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.