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Finding the Fourth Proportional to 348.76, 522.69 and 194.77

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Solution

The fourth proportional to 348.76, 522.69 and 194.77 is: 291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.76 : 522.69 = 194.77 : x
  2. Step 2: Convert to fraction form
    348.76/522.69 = 194.77/x
  3. Step 3: Cross multiply
    348.76x = 522.69 × 194.77
  4. Step 4: Simplify right side
    348.76x = 101,804.33
  5. Step 5: Solve for x
    x = 101,804.33/348.76
  6. Step 6: Final answer
    x = 291.90

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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.