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Finding the Fourth Proportional to 236.03, 325.59 and 142.72

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Solution

The fourth proportional to 236.03, 325.59 and 142.72 is: 196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.03 : 325.59 = 142.72 : x
  2. Step 2: Convert to fraction form
    236.03/325.59 = 142.72/x
  3. Step 3: Cross multiply
    236.03x = 325.59 × 142.72
  4. Step 4: Simplify right side
    236.03x = 46,468.20
  5. Step 5: Solve for x
    x = 46,468.20/236.03
  6. Step 6: Final answer
    x = 196.87

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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.