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Finding the Fourth Proportional to 244.17, 368.28 and 217.74

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Solution

The fourth proportional to 244.17, 368.28 and 217.74 is: 328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    244.17 : 368.28 = 217.74 : x
  2. Step 2: Convert to fraction form
    244.17/368.28 = 217.74/x
  3. Step 3: Cross multiply
    244.17x = 368.28 × 217.74
  4. Step 4: Simplify right side
    244.17x = 80,189.29
  5. Step 5: Solve for x
    x = 80,189.29/244.17
  6. Step 6: Final answer
    x = 328.42

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.