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Finding the Fourth Proportional to 235.34, 352.20 and 144.08

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Solution

The fourth proportional to 235.34, 352.20 and 144.08 is: 215.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.34 : 352.20 = 144.08 : x
  2. Step 2: Convert to fraction form
    235.34/352.20 = 144.08/x
  3. Step 3: Cross multiply
    235.34x = 352.20 × 144.08
  4. Step 4: Simplify right side
    235.34x = 50,744.98
  5. Step 5: Solve for x
    x = 50,744.98/235.34
  6. Step 6: Final answer
    x = 215.62

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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.