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Finding the Fourth Proportional to 818.67, 1,229.22 and 332.67

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Solution

The fourth proportional to 818.67, 1,229.22 and 332.67 is: 499.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    818.67 : 1,229.22 = 332.67 : x
  2. Step 2: Convert to fraction form
    818.67/1,229.22 = 332.67/x
  3. Step 3: Cross multiply
    818.67x = 1,229.22 × 332.67
  4. Step 4: Simplify right side
    818.67x = 408,924.62
  5. Step 5: Solve for x
    x = 408,924.62/818.67
  6. Step 6: Final answer
    x = 499.50

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Double scale
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1.5x scale

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.