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Finding the Fourth Proportional to 368.28, 549.45 and 324.54

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Solution

The fourth proportional to 368.28, 549.45 and 324.54 is: 484.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    368.28 : 549.45 = 324.54 : x
  2. Step 2: Convert to fraction form
    368.28/549.45 = 324.54/x
  3. Step 3: Cross multiply
    368.28x = 549.45 × 324.54
  4. Step 4: Simplify right side
    368.28x = 178,318.50
  5. Step 5: Solve for x
    x = 178,318.50/368.28
  6. Step 6: Final answer
    x = 484.19

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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.