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Finding the Fourth Proportional to 548.37, 822.20 and 240.05

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Solution

The fourth proportional to 548.37, 822.20 and 240.05 is: 359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    548.37 : 822.20 = 240.05 : x
  2. Step 2: Convert to fraction form
    548.37/822.20 = 240.05/x
  3. Step 3: Cross multiply
    548.37x = 822.20 × 240.05
  4. Step 4: Simplify right side
    548.37x = 197,369.97
  5. Step 5: Solve for x
    x = 197,369.97/548.37
  6. Step 6: Final answer
    x = 359.92

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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.