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Finding the Fourth Proportional to 296.97, 409.81 and 165.98

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Solution

The fourth proportional to 296.97, 409.81 and 165.98 is: 229.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.97 : 409.81 = 165.98 : x
  2. Step 2: Convert to fraction form
    296.97/409.81 = 165.98/x
  3. Step 3: Cross multiply
    296.97x = 409.81 × 165.98
  4. Step 4: Simplify right side
    296.97x = 68,017.38
  5. Step 5: Solve for x
    x = 68,017.38/296.97
  6. Step 6: Final answer
    x = 229.04

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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.