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Finding the Fourth Proportional to 547.96, 822.08 and 239.87

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Solution

The fourth proportional to 547.96, 822.08 and 239.87 is: 359.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    547.96 : 822.08 = 239.87 : x
  2. Step 2: Convert to fraction form
    547.96/822.08 = 239.87/x
  3. Step 3: Cross multiply
    547.96x = 822.08 × 239.87
  4. Step 4: Simplify right side
    547.96x = 197,194.98
  5. Step 5: Solve for x
    x = 197,194.98/547.96
  6. Step 6: Final answer
    x = 359.87

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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.