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Finding the Fourth Proportional to 164.16, 225.33 and 149.58

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Solution

The fourth proportional to 164.16, 225.33 and 149.58 is: 205.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.16 : 225.33 = 149.58 : x
  2. Step 2: Convert to fraction form
    164.16/225.33 = 149.58/x
  3. Step 3: Cross multiply
    164.16x = 225.33 × 149.58
  4. Step 4: Simplify right side
    164.16x = 33,704.86
  5. Step 5: Solve for x
    x = 33,704.86/164.16
  6. Step 6: Final answer
    x = 205.32

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.