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Finding the Fourth Proportional to 348.39, 522.30 and 174.85

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Solution

The fourth proportional to 348.39, 522.30 and 174.85 is: 262.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.39 : 522.30 = 174.85 : x
  2. Step 2: Convert to fraction form
    348.39/522.30 = 174.85/x
  3. Step 3: Cross multiply
    348.39x = 522.30 × 174.85
  4. Step 4: Simplify right side
    348.39x = 91,324.16
  5. Step 5: Solve for x
    x = 91,324.16/348.39
  6. Step 6: Final answer
    x = 262.13

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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.