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Finding the Fourth Proportional to 327.58, 491.02 and 122.06

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Solution

The fourth proportional to 327.58, 491.02 and 122.06 is: 182.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    327.58 : 491.02 = 122.06 : x
  2. Step 2: Convert to fraction form
    327.58/491.02 = 122.06/x
  3. Step 3: Cross multiply
    327.58x = 491.02 × 122.06
  4. Step 4: Simplify right side
    327.58x = 59,931.75
  5. Step 5: Solve for x
    x = 59,931.75/327.58
  6. Step 6: Final answer
    x = 182.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.