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Finding the Fourth Proportional to 348.39, 479.97 and 249.98

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Solution

The fourth proportional to 348.39, 479.97 and 249.98 is: 344.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.39 : 479.97 = 249.98 : x
  2. Step 2: Convert to fraction form
    348.39/479.97 = 249.98/x
  3. Step 3: Cross multiply
    348.39x = 479.97 × 249.98
  4. Step 4: Simplify right side
    348.39x = 119,980.50
  5. Step 5: Solve for x
    x = 119,980.50/348.39
  6. Step 6: Final answer
    x = 344.39

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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.