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Finding the Fourth Proportional to 368.93, 550.54 and 328.03

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Solution

The fourth proportional to 368.93, 550.54 and 328.03 is: 489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.93 : 550.54 = 328.03 : x
  2. Step 2: Convert to fraction form
    368.93/550.54 = 328.03/x
  3. Step 3: Cross multiply
    368.93x = 550.54 × 328.03
  4. Step 4: Simplify right side
    368.93x = 180,593.64
  5. Step 5: Solve for x
    x = 180,593.64/368.93
  6. Step 6: Final answer
    x = 489.51

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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.