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Finding the Fourth Proportional to 325,603.74, 449,086.07 and 285,247.44

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Solution

The fourth proportional to 325,603.74, 449,086.07 and 285,247.44 is: 393,425.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,603.74 : 449,086.07 = 285,247.44 : x
  2. Step 2: Convert to fraction form
    325,603.74/449,086.07 = 285,247.44/x
  3. Step 3: Cross multiply
    325,603.74x = 449,086.07 × 285,247.44
  4. Step 4: Simplify right side
    325,603.74x = 128,100,652,520.28
  5. Step 5: Solve for x
    x = 128,100,652,520.28/325,603.74
  6. Step 6: Final answer
    x = 393,425.00

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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.