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Finding the Fourth Proportional to 236.76, 356.64 and 222.36

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Solution

The fourth proportional to 236.76, 356.64 and 222.36 is: 334.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236.76 : 356.64 = 222.36 : x
  2. Step 2: Convert to fraction form
    236.76/356.64 = 222.36/x
  3. Step 3: Cross multiply
    236.76x = 356.64 × 222.36
  4. Step 4: Simplify right side
    236.76x = 79,302.47
  5. Step 5: Solve for x
    x = 79,302.47/236.76
  6. Step 6: Final answer
    x = 334.95

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.