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Finding the Fourth Proportional to 549.53, 824.42 and 164.75

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Solution

The fourth proportional to 549.53, 824.42 and 164.75 is: 247.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    549.53 : 824.42 = 164.75 : x
  2. Step 2: Convert to fraction form
    549.53/824.42 = 164.75/x
  3. Step 3: Cross multiply
    549.53x = 824.42 × 164.75
  4. Step 4: Simplify right side
    549.53x = 135,822.37
  5. Step 5: Solve for x
    x = 135,822.37/549.53
  6. Step 6: Final answer
    x = 247.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.