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Finding the Fourth Proportional to 164.63, 227.16 and 90.92

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Solution

The fourth proportional to 164.63, 227.16 and 90.92 is: 125.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.63 : 227.16 = 90.92 : x
  2. Step 2: Convert to fraction form
    164.63/227.16 = 90.92/x
  3. Step 3: Cross multiply
    164.63x = 227.16 × 90.92
  4. Step 4: Simplify right side
    164.63x = 20,653.96
  5. Step 5: Solve for x
    x = 20,653.96/164.63
  6. Step 6: Final answer
    x = 125.46

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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.