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Finding the Fourth Proportional to 236.17, 325.69 and 156.27

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Solution

The fourth proportional to 236.17, 325.69 and 156.27 is: 215.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.17 : 325.69 = 156.27 : x
  2. Step 2: Convert to fraction form
    236.17/325.69 = 156.27/x
  3. Step 3: Cross multiply
    236.17x = 325.69 × 156.27
  4. Step 4: Simplify right side
    236.17x = 50,895.58
  5. Step 5: Solve for x
    x = 50,895.58/236.17
  6. Step 6: Final answer
    x = 215.50

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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.