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Finding the Fourth Proportional to 236.32, 325.60 and 158.56

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Solution

The fourth proportional to 236.32, 325.60 and 158.56 is: 218.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.32 : 325.60 = 158.56 : x
  2. Step 2: Convert to fraction form
    236.32/325.60 = 158.56/x
  3. Step 3: Cross multiply
    236.32x = 325.60 × 158.56
  4. Step 4: Simplify right side
    236.32x = 51,627.14
  5. Step 5: Solve for x
    x = 51,627.14/236.32
  6. Step 6: Final answer
    x = 218.46

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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.