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Finding the Fourth Proportional to 488.11, 673.61 and 267.07

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Solution

The fourth proportional to 488.11, 673.61 and 267.07 is: 368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    488.11 : 673.61 = 267.07 : x
  2. Step 2: Convert to fraction form
    488.11/673.61 = 267.07/x
  3. Step 3: Cross multiply
    488.11x = 673.61 × 267.07
  4. Step 4: Simplify right side
    488.11x = 179,901.02
  5. Step 5: Solve for x
    x = 179,901.02/488.11
  6. Step 6: Final answer
    x = 368.57

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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.