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Finding the Fourth Proportional to 383,296.81, 528,949.64 and 222,245.29

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Solution

The fourth proportional to 383,296.81, 528,949.64 and 222,245.29 is: 306,698.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,296.81 : 528,949.64 = 222,245.29 : x
  2. Step 2: Convert to fraction form
    383,296.81/528,949.64 = 222,245.29/x
  3. Step 3: Cross multiply
    383,296.81x = 528,949.64 × 222,245.29
  4. Step 4: Simplify right side
    383,296.81x = 117,556,564,378.65
  5. Step 5: Solve for x
    x = 117,556,564,378.65/383,296.81
  6. Step 6: Final answer
    x = 306,698.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.