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Finding the Fourth Proportional to 546.38, 819.53 and 181.16

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Solution

The fourth proportional to 546.38, 819.53 and 181.16 is: 271.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.38 : 819.53 = 181.16 : x
  2. Step 2: Convert to fraction form
    546.38/819.53 = 181.16/x
  3. Step 3: Cross multiply
    546.38x = 819.53 × 181.16
  4. Step 4: Simplify right side
    546.38x = 148,461.05
  5. Step 5: Solve for x
    x = 148,461.05/546.38
  6. Step 6: Final answer
    x = 271.72

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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.