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Finding the Fourth Proportional to 233.84, 351.48 and 217.64

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Solution

The fourth proportional to 233.84, 351.48 and 217.64 is: 327.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.84 : 351.48 = 217.64 : x
  2. Step 2: Convert to fraction form
    233.84/351.48 = 217.64/x
  3. Step 3: Cross multiply
    233.84x = 351.48 × 217.64
  4. Step 4: Simplify right side
    233.84x = 76,496.11
  5. Step 5: Solve for x
    x = 76,496.11/233.84
  6. Step 6: Final answer
    x = 327.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.