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Finding the Fourth Proportional to 235.31, 352.69 and 154.01

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Solution

The fourth proportional to 235.31, 352.69 and 154.01 is: 230.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.31 : 352.69 = 154.01 : x
  2. Step 2: Convert to fraction form
    235.31/352.69 = 154.01/x
  3. Step 3: Cross multiply
    235.31x = 352.69 × 154.01
  4. Step 4: Simplify right side
    235.31x = 54,317.79
  5. Step 5: Solve for x
    x = 54,317.79/235.31
  6. Step 6: Final answer
    x = 230.84

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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.