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Finding the Fourth Proportional to 336.69, 504.12 and 220.85

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Solution

The fourth proportional to 336.69, 504.12 and 220.85 is: 330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    336.69 : 504.12 = 220.85 : x
  2. Step 2: Convert to fraction form
    336.69/504.12 = 220.85/x
  3. Step 3: Cross multiply
    336.69x = 504.12 × 220.85
  4. Step 4: Simplify right side
    336.69x = 111,332.38
  5. Step 5: Solve for x
    x = 111,332.38/336.69
  6. Step 6: Final answer
    x = 330.67

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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.