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Finding the Fourth Proportional to 348.01, 479.50 and 249.59

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Solution

The fourth proportional to 348.01, 479.50 and 249.59 is: 343.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    348.01 : 479.50 = 249.59 : x
  2. Step 2: Convert to fraction form
    348.01/479.50 = 249.59/x
  3. Step 3: Cross multiply
    348.01x = 479.50 × 249.59
  4. Step 4: Simplify right side
    348.01x = 119,678.98
  5. Step 5: Solve for x
    x = 119,678.98/348.01
  6. Step 6: Final answer
    x = 343.90

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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.