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Finding the Fourth Proportional to 296.74, 408.89 and 267.17

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Solution

The fourth proportional to 296.74, 408.89 and 267.17 is: 368.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    296.74 : 408.89 = 267.17 : x
  2. Step 2: Convert to fraction form
    296.74/408.89 = 267.17/x
  3. Step 3: Cross multiply
    296.74x = 408.89 × 267.17
  4. Step 4: Simplify right side
    296.74x = 109,244.84
  5. Step 5: Solve for x
    x = 109,244.84/296.74
  6. Step 6: Final answer
    x = 368.15

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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.