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Finding the Fourth Proportional to 348.99, 481.09 and 265.95

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Solution

The fourth proportional to 348.99, 481.09 and 265.95 is: 366.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.99 : 481.09 = 265.95 : x
  2. Step 2: Convert to fraction form
    348.99/481.09 = 265.95/x
  3. Step 3: Cross multiply
    348.99x = 481.09 × 265.95
  4. Step 4: Simplify right side
    348.99x = 127,943.35
  5. Step 5: Solve for x
    x = 127,943.35/348.99
  6. Step 6: Final answer
    x = 366.62

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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.