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Finding the Fourth Proportional to 285,620.58, 394,314.34 and 255,333.37

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Solution

The fourth proportional to 285,620.58, 394,314.34 and 255,333.37 is: 352,501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,620.58 : 394,314.34 = 255,333.37 : x
  2. Step 2: Convert to fraction form
    285,620.58/394,314.34 = 255,333.37/x
  3. Step 3: Cross multiply
    285,620.58x = 394,314.34 × 255,333.37
  4. Step 4: Simplify right side
    285,620.58x = 100,681,607,038.36
  5. Step 5: Solve for x
    x = 100,681,607,038.36/285,620.58
  6. Step 6: Final answer
    x = 352,501.23

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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.