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Finding the Fourth Proportional to 488.33, 673.90 and 267.28

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Solution

The fourth proportional to 488.33, 673.90 and 267.28 is: 368.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.33 : 673.90 = 267.28 : x
  2. Step 2: Convert to fraction form
    488.33/673.90 = 267.28/x
  3. Step 3: Cross multiply
    488.33x = 673.90 × 267.28
  4. Step 4: Simplify right side
    488.33x = 180,122.93
  5. Step 5: Solve for x
    x = 180,122.93/488.33
  6. Step 6: Final answer
    x = 368.86

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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.