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Finding the Fourth Proportional to 233.84, 322.32 and 217.52

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Solution

The fourth proportional to 233.84, 322.32 and 217.52 is: 299.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.84 : 322.32 = 217.52 : x
  2. Step 2: Convert to fraction form
    233.84/322.32 = 217.52/x
  3. Step 3: Cross multiply
    233.84x = 322.32 × 217.52
  4. Step 4: Simplify right side
    233.84x = 70,111.05
  5. Step 5: Solve for x
    x = 70,111.05/233.84
  6. Step 6: Final answer
    x = 299.82

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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.