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Finding the Fourth Proportional to 383,371.81, 529,055.27 and 222,322.48

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Solution

The fourth proportional to 383,371.81, 529,055.27 and 222,322.48 is: 306,806.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,371.81 : 529,055.27 = 222,322.48 : x
  2. Step 2: Convert to fraction form
    383,371.81/529,055.27 = 222,322.48/x
  3. Step 3: Cross multiply
    383,371.81x = 529,055.27 × 222,322.48
  4. Step 4: Simplify right side
    383,371.81x = 117,620,878,571.86
  5. Step 5: Solve for x
    x = 117,620,878,571.86/383,371.81
  6. Step 6: Final answer
    x = 306,806.28

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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.