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Finding the Fourth Proportional to 240.14, 329.27 and 216.72

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Solution

The fourth proportional to 240.14, 329.27 and 216.72 is: 297.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    240.14 : 329.27 = 216.72 : x
  2. Step 2: Convert to fraction form
    240.14/329.27 = 216.72/x
  3. Step 3: Cross multiply
    240.14x = 329.27 × 216.72
  4. Step 4: Simplify right side
    240.14x = 71,358.31
  5. Step 5: Solve for x
    x = 71,358.31/240.14
  6. Step 6: Final answer
    x = 297.16

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.