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Finding the Fourth Proportional to 546.03, 818.64 and 221.37

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Solution

The fourth proportional to 546.03, 818.64 and 221.37 is: 331.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    546.03 : 818.64 = 221.37 : x
  2. Step 2: Convert to fraction form
    546.03/818.64 = 221.37/x
  3. Step 3: Cross multiply
    546.03x = 818.64 × 221.37
  4. Step 4: Simplify right side
    546.03x = 181,222.34
  5. Step 5: Solve for x
    x = 181,222.34/546.03
  6. Step 6: Final answer
    x = 331.89

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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.