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Finding the Fourth Proportional to 348.01, 479.82 and 254.68

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Solution

The fourth proportional to 348.01, 479.82 and 254.68 is: 351.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.01 : 479.82 = 254.68 : x
  2. Step 2: Convert to fraction form
    348.01/479.82 = 254.68/x
  3. Step 3: Cross multiply
    348.01x = 479.82 × 254.68
  4. Step 4: Simplify right side
    348.01x = 122,200.56
  5. Step 5: Solve for x
    x = 122,200.56/348.01
  6. Step 6: Final answer
    x = 351.14

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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.