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Finding the Fourth Proportional to 394,825.37, 544,859.01 and 213,537.30

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Solution

The fourth proportional to 394,825.37, 544,859.01 and 213,537.30 is: 294,681.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,825.37 : 544,859.01 = 213,537.30 : x
  2. Step 2: Convert to fraction form
    394,825.37/544,859.01 = 213,537.30/x
  3. Step 3: Cross multiply
    394,825.37x = 544,859.01 × 213,537.30
  4. Step 4: Simplify right side
    394,825.37x = 116,347,722,732.05
  5. Step 5: Solve for x
    x = 116,347,722,732.05/394,825.37
  6. Step 6: Final answer
    x = 294,681.47

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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.