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Finding the Fourth Proportional to 319.56, 478.11 and 182.67

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Solution

The fourth proportional to 319.56, 478.11 and 182.67 is: 273.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319.56 : 478.11 = 182.67 : x
  2. Step 2: Convert to fraction form
    319.56/478.11 = 182.67/x
  3. Step 3: Cross multiply
    319.56x = 478.11 × 182.67
  4. Step 4: Simplify right side
    319.56x = 87,336.35
  5. Step 5: Solve for x
    x = 87,336.35/319.56
  6. Step 6: Final answer
    x = 273.30

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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.