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Finding the Fourth Proportional to 161.60, 224.56 and 160.96

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Solution

The fourth proportional to 161.60, 224.56 and 160.96 is: 223.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    161.60 : 224.56 = 160.96 : x
  2. Step 2: Convert to fraction form
    161.60/224.56 = 160.96/x
  3. Step 3: Cross multiply
    161.60x = 224.56 × 160.96
  4. Step 4: Simplify right side
    161.60x = 36,145.18
  5. Step 5: Solve for x
    x = 36,145.18/161.60
  6. Step 6: Final answer
    x = 223.67

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.