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Finding the Fourth Proportional to 235.60, 324.92 and 170.16

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Solution

The fourth proportional to 235.60, 324.92 and 170.16 is: 234.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    235.60 : 324.92 = 170.16 : x
  2. Step 2: Convert to fraction form
    235.60/324.92 = 170.16/x
  3. Step 3: Cross multiply
    235.60x = 324.92 × 170.16
  4. Step 4: Simplify right side
    235.60x = 55,288.39
  5. Step 5: Solve for x
    x = 55,288.39/235.60
  6. Step 6: Final answer
    x = 234.67

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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.