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Finding the Fourth Proportional to 365.99, 550.97 and 328.31

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Solution

The fourth proportional to 365.99, 550.97 and 328.31 is: 494.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    365.99 : 550.97 = 328.31 : x
  2. Step 2: Convert to fraction form
    365.99/550.97 = 328.31/x
  3. Step 3: Cross multiply
    365.99x = 550.97 × 328.31
  4. Step 4: Simplify right side
    365.99x = 180,888.70
  5. Step 5: Solve for x
    x = 180,888.70/365.99
  6. Step 6: Final answer
    x = 494.25

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.