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Finding the Fourth Proportional to 276.56, 381.54 and 166.01

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Solution

The fourth proportional to 276.56, 381.54 and 166.01 is: 229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    276.56 : 381.54 = 166.01 : x
  2. Step 2: Convert to fraction form
    276.56/381.54 = 166.01/x
  3. Step 3: Cross multiply
    276.56x = 381.54 × 166.01
  4. Step 4: Simplify right side
    276.56x = 63,339.46
  5. Step 5: Solve for x
    x = 63,339.46/276.56
  6. Step 6: Final answer
    x = 229.03

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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.