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Finding the Fourth Proportional to 546.01, 818.94 and 285.86

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Solution

The fourth proportional to 546.01, 818.94 and 285.86 is: 428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.01 : 818.94 = 285.86 : x
  2. Step 2: Convert to fraction form
    546.01/818.94 = 285.86/x
  3. Step 3: Cross multiply
    546.01x = 818.94 × 285.86
  4. Step 4: Simplify right side
    546.01x = 234,105.31
  5. Step 5: Solve for x
    x = 234,105.31/546.01
  6. Step 6: Final answer
    x = 428.76

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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.