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Finding the Fourth Proportional to 488.57, 673.52 and 348.62

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Solution

The fourth proportional to 488.57, 673.52 and 348.62 is: 480.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.57 : 673.52 = 348.62 : x
  2. Step 2: Convert to fraction form
    488.57/673.52 = 348.62/x
  3. Step 3: Cross multiply
    488.57x = 673.52 × 348.62
  4. Step 4: Simplify right side
    488.57x = 234,797.43
  5. Step 5: Solve for x
    x = 234,797.43/488.57
  6. Step 6: Final answer
    x = 480.59

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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.