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Finding the Fourth Proportional to 296.54, 409.01 and 217.83

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Solution

The fourth proportional to 296.54, 409.01 and 217.83 is: 300.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.54 : 409.01 = 217.83 : x
  2. Step 2: Convert to fraction form
    296.54/409.01 = 217.83/x
  3. Step 3: Cross multiply
    296.54x = 409.01 × 217.83
  4. Step 4: Simplify right side
    296.54x = 89,092.79
  5. Step 5: Solve for x
    x = 89,092.79/296.54
  6. Step 6: Final answer
    x = 300.44

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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.