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Finding the Fourth Proportional to 368.49, 551.43 and 363

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Solution

The fourth proportional to 368.49, 551.43 and 363 is: 543.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.49 : 551.43 = 363 : x
  2. Step 2: Convert to fraction form
    368.49/551.43 = 363/x
  3. Step 3: Cross multiply
    368.49x = 551.43 × 363
  4. Step 4: Simplify right side
    368.49x = 200,169.09
  5. Step 5: Solve for x
    x = 200,169.09/368.49
  6. Step 6: Final answer
    x = 543.21

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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.