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Finding the Fourth Proportional to 170.60, 236.68 and 161.69

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Solution

The fourth proportional to 170.60, 236.68 and 161.69 is: 224.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    170.60 : 236.68 = 161.69 : x
  2. Step 2: Convert to fraction form
    170.60/236.68 = 161.69/x
  3. Step 3: Cross multiply
    170.60x = 236.68 × 161.69
  4. Step 4: Simplify right side
    170.60x = 38,267.20
  5. Step 5: Solve for x
    x = 38,267.20/170.60
  6. Step 6: Final answer
    x = 224.32

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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.