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Finding the Fourth Proportional to 549.33, 757.98 and 328.27

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Solution

The fourth proportional to 549.33, 757.98 and 328.27 is: 452.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.33 : 757.98 = 328.27 : x
  2. Step 2: Convert to fraction form
    549.33/757.98 = 328.27/x
  3. Step 3: Cross multiply
    549.33x = 757.98 × 328.27
  4. Step 4: Simplify right side
    549.33x = 248,822.09
  5. Step 5: Solve for x
    x = 248,822.09/549.33
  6. Step 6: Final answer
    x = 452.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.