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Finding the Fourth Proportional to 329.52, 454.62 and 242.28

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Solution

The fourth proportional to 329.52, 454.62 and 242.28 is: 334.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    329.52 : 454.62 = 242.28 : x
  2. Step 2: Convert to fraction form
    329.52/454.62 = 242.28/x
  3. Step 3: Cross multiply
    329.52x = 454.62 × 242.28
  4. Step 4: Simplify right side
    329.52x = 110,145.33
  5. Step 5: Solve for x
    x = 110,145.33/329.52
  6. Step 6: Final answer
    x = 334.26

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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.