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Finding the Fourth Proportional to 235.28, 352.56 and 178.32

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Solution

The fourth proportional to 235.28, 352.56 and 178.32 is: 267.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.28 : 352.56 = 178.32 : x
  2. Step 2: Convert to fraction form
    235.28/352.56 = 178.32/x
  3. Step 3: Cross multiply
    235.28x = 352.56 × 178.32
  4. Step 4: Simplify right side
    235.28x = 62,868.50
  5. Step 5: Solve for x
    x = 62,868.50/235.28
  6. Step 6: Final answer
    x = 267.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.