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Finding the Fourth Proportional to 333.84, 460.92 and 217.60

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Solution

The fourth proportional to 333.84, 460.92 and 217.60 is: 300.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    333.84 : 460.92 = 217.60 : x
  2. Step 2: Convert to fraction form
    333.84/460.92 = 217.60/x
  3. Step 3: Cross multiply
    333.84x = 460.92 × 217.60
  4. Step 4: Simplify right side
    333.84x = 100,296.19
  5. Step 5: Solve for x
    x = 100,296.19/333.84
  6. Step 6: Final answer
    x = 300.43

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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.