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Finding the Fourth Proportional to 488.05, 673.91 and 348.59

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Solution

The fourth proportional to 488.05, 673.91 and 348.59 is: 481.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.05 : 673.91 = 348.59 : x
  2. Step 2: Convert to fraction form
    488.05/673.91 = 348.59/x
  3. Step 3: Cross multiply
    488.05x = 673.91 × 348.59
  4. Step 4: Simplify right side
    488.05x = 234,919.16
  5. Step 5: Solve for x
    x = 234,919.16/488.05
  6. Step 6: Final answer
    x = 481.35

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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.