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Finding the Fourth Proportional to 358.44, 536.86 and 165.48

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Solution

The fourth proportional to 358.44, 536.86 and 165.48 is: 247.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    358.44 : 536.86 = 165.48 : x
  2. Step 2: Convert to fraction form
    358.44/536.86 = 165.48/x
  3. Step 3: Cross multiply
    358.44x = 536.86 × 165.48
  4. Step 4: Simplify right side
    358.44x = 88,839.59
  5. Step 5: Solve for x
    x = 88,839.59/358.44
  6. Step 6: Final answer
    x = 247.85

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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.