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Finding the Fourth Proportional to 164.28, 225.26 and 147.84

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Solution

The fourth proportional to 164.28, 225.26 and 147.84 is: 202.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.28 : 225.26 = 147.84 : x
  2. Step 2: Convert to fraction form
    164.28/225.26 = 147.84/x
  3. Step 3: Cross multiply
    164.28x = 225.26 × 147.84
  4. Step 4: Simplify right side
    164.28x = 33,302.44
  5. Step 5: Solve for x
    x = 33,302.44/164.28
  6. Step 6: Final answer
    x = 202.72

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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.