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Finding the Fourth Proportional to 164.28, 227.06 and 125.40

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Solution

The fourth proportional to 164.28, 227.06 and 125.40 is: 173.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    164.28 : 227.06 = 125.40 : x
  2. Step 2: Convert to fraction form
    164.28/227.06 = 125.40/x
  3. Step 3: Cross multiply
    164.28x = 227.06 × 125.40
  4. Step 4: Simplify right side
    164.28x = 28,473.32
  5. Step 5: Solve for x
    x = 28,473.32/164.28
  6. Step 6: Final answer
    x = 173.32

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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.