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Finding the Fourth Proportional to 238.85, 329.72 and 183.57

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Solution

The fourth proportional to 238.85, 329.72 and 183.57 is: 253.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    238.85 : 329.72 = 183.57 : x
  2. Step 2: Convert to fraction form
    238.85/329.72 = 183.57/x
  3. Step 3: Cross multiply
    238.85x = 329.72 × 183.57
  4. Step 4: Simplify right side
    238.85x = 60,525.58
  5. Step 5: Solve for x
    x = 60,525.58/238.85
  6. Step 6: Final answer
    x = 253.41

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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.