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Finding the Fourth Proportional to 348.41, 480.80 and 191.04

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Solution

The fourth proportional to 348.41, 480.80 and 191.04 is: 263.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.41 : 480.80 = 191.04 : x
  2. Step 2: Convert to fraction form
    348.41/480.80 = 191.04/x
  3. Step 3: Cross multiply
    348.41x = 480.80 × 191.04
  4. Step 4: Simplify right side
    348.41x = 91,851.32
  5. Step 5: Solve for x
    x = 91,851.32/348.41
  6. Step 6: Final answer
    x = 263.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.