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Finding the Fourth Proportional to 277.03, 415.08 and 132.43

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Solution

The fourth proportional to 277.03, 415.08 and 132.43 is: 198.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.03 : 415.08 = 132.43 : x
  2. Step 2: Convert to fraction form
    277.03/415.08 = 132.43/x
  3. Step 3: Cross multiply
    277.03x = 415.08 × 132.43
  4. Step 4: Simplify right side
    277.03x = 54,969.04
  5. Step 5: Solve for x
    x = 54,969.04/277.03
  6. Step 6: Final answer
    x = 198.42

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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.