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Finding the Fourth Proportional to 369.55, 553.71 and 195.97

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Solution

The fourth proportional to 369.55, 553.71 and 195.97 is: 293.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.55 : 553.71 = 195.97 : x
  2. Step 2: Convert to fraction form
    369.55/553.71 = 195.97/x
  3. Step 3: Cross multiply
    369.55x = 553.71 × 195.97
  4. Step 4: Simplify right side
    369.55x = 108,510.55
  5. Step 5: Solve for x
    x = 108,510.55/369.55
  6. Step 6: Final answer
    x = 293.63

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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.