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Finding the Fourth Proportional to 267.33, 400.40 and 130.08

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Solution

The fourth proportional to 267.33, 400.40 and 130.08 is: 194.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.33 : 400.40 = 130.08 : x
  2. Step 2: Convert to fraction form
    267.33/400.40 = 130.08/x
  3. Step 3: Cross multiply
    267.33x = 400.40 × 130.08
  4. Step 4: Simplify right side
    267.33x = 52,084.03
  5. Step 5: Solve for x
    x = 52,084.03/267.33
  6. Step 6: Final answer
    x = 194.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.