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Finding the Fourth Proportional to 369.36, 551.38 and 329.04

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Solution

The fourth proportional to 369.36, 551.38 and 329.04 is: 491.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.36 : 551.38 = 329.04 : x
  2. Step 2: Convert to fraction form
    369.36/551.38 = 329.04/x
  3. Step 3: Cross multiply
    369.36x = 551.38 × 329.04
  4. Step 4: Simplify right side
    369.36x = 181,426.08
  5. Step 5: Solve for x
    x = 181,426.08/369.36
  6. Step 6: Final answer
    x = 491.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.