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Finding the Fourth Proportional to 546.10, 819 and 268.32

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Solution

The fourth proportional to 546.10, 819 and 268.32 is: 402.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.10 : 819 = 268.32 : x
  2. Step 2: Convert to fraction form
    546.10/819 = 268.32/x
  3. Step 3: Cross multiply
    546.10x = 819 × 268.32
  4. Step 4: Simplify right side
    546.10x = 219,754.08
  5. Step 5: Solve for x
    x = 219,754.08/546.10
  6. Step 6: Final answer
    x = 402.41

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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.