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Finding the Fourth Proportional to 443.99, 665.72 and 183.69

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Solution

The fourth proportional to 443.99, 665.72 and 183.69 is: 275.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    443.99 : 665.72 = 183.69 : x
  2. Step 2: Convert to fraction form
    443.99/665.72 = 183.69/x
  3. Step 3: Cross multiply
    443.99x = 665.72 × 183.69
  4. Step 4: Simplify right side
    443.99x = 122,282.78
  5. Step 5: Solve for x
    x = 122,282.78/443.99
  6. Step 6: Final answer
    x = 275.42

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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.