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Finding the Fourth Proportional to 546.31, 819.50 and 181.08

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Solution

The fourth proportional to 546.31, 819.50 and 181.08 is: 271.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.31 : 819.50 = 181.08 : x
  2. Step 2: Convert to fraction form
    546.31/819.50 = 181.08/x
  3. Step 3: Cross multiply
    546.31x = 819.50 × 181.08
  4. Step 4: Simplify right side
    546.31x = 148,395.06
  5. Step 5: Solve for x
    x = 148,395.06/546.31
  6. Step 6: Final answer
    x = 271.63

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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.