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Finding the Fourth Proportional to 549.48, 757.58 and 352.92

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Solution

The fourth proportional to 549.48, 757.58 and 352.92 is: 486.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.48 : 757.58 = 352.92 : x
  2. Step 2: Convert to fraction form
    549.48/757.58 = 352.92/x
  3. Step 3: Cross multiply
    549.48x = 757.58 × 352.92
  4. Step 4: Simplify right side
    549.48x = 267,363.37
  5. Step 5: Solve for x
    x = 267,363.37/549.48
  6. Step 6: Final answer
    x = 486.58

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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.