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Finding the Fourth Proportional to 549.09, 757.40 and 352.44

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Solution

The fourth proportional to 549.09, 757.40 and 352.44 is: 486.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.09 : 757.40 = 352.44 : x
  2. Step 2: Convert to fraction form
    549.09/757.40 = 352.44/x
  3. Step 3: Cross multiply
    549.09x = 757.40 × 352.44
  4. Step 4: Simplify right side
    549.09x = 266,936.29
  5. Step 5: Solve for x
    x = 266,936.29/549.09
  6. Step 6: Final answer
    x = 486.14

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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.