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Finding the Fourth Proportional to 1,179.27, 1,768.68 and 357.75

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Solution

The fourth proportional to 1,179.27, 1,768.68 and 357.75 is: 536.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179.27 : 1,768.68 = 357.75 : x
  2. Step 2: Convert to fraction form
    1,179.27/1,768.68 = 357.75/x
  3. Step 3: Cross multiply
    1,179.27x = 1,768.68 × 357.75
  4. Step 4: Simplify right side
    1,179.27x = 632,745.27
  5. Step 5: Solve for x
    x = 632,745.27/1,179.27
  6. Step 6: Final answer
    x = 536.56

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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.