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Finding the Fourth Proportional to 551.08, 825.20 and 365.41

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Solution

The fourth proportional to 551.08, 825.20 and 365.41 is: 547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    551.08 : 825.20 = 365.41 : x
  2. Step 2: Convert to fraction form
    551.08/825.20 = 365.41/x
  3. Step 3: Cross multiply
    551.08x = 825.20 × 365.41
  4. Step 4: Simplify right side
    551.08x = 301,530.38
  5. Step 5: Solve for x
    x = 301,530.38/551.08
  6. Step 6: Final answer
    x = 547.17

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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.