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Finding the Fourth Proportional to 369.44, 553.04 and 348.40

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Solution

The fourth proportional to 369.44, 553.04 and 348.40 is: 521.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    369.44 : 553.04 = 348.40 : x
  2. Step 2: Convert to fraction form
    369.44/553.04 = 348.40/x
  3. Step 3: Cross multiply
    369.44x = 553.04 × 348.40
  4. Step 4: Simplify right side
    369.44x = 192,679.14
  5. Step 5: Solve for x
    x = 192,679.14/369.44
  6. Step 6: Final answer
    x = 521.54

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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.