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Finding the Fourth Proportional to 546.33, 818.38 and 443.06

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Solution

The fourth proportional to 546.33, 818.38 and 443.06 is: 663.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.33 : 818.38 = 443.06 : x
  2. Step 2: Convert to fraction form
    546.33/818.38 = 443.06/x
  3. Step 3: Cross multiply
    546.33x = 818.38 × 443.06
  4. Step 4: Simplify right side
    546.33x = 362,591.44
  5. Step 5: Solve for x
    x = 362,591.44/546.33
  6. Step 6: Final answer
    x = 663.69

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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.