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Finding the Fourth Proportional to 394,885.58, 544,942.16 and 213,597.45

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Solution

The fourth proportional to 394,885.58, 544,942.16 and 213,597.45 is: 294,764.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,885.58 : 544,942.16 = 213,597.45 : x
  2. Step 2: Convert to fraction form
    394,885.58/544,942.16 = 213,597.45/x
  3. Step 3: Cross multiply
    394,885.58x = 544,942.16 × 213,597.45
  4. Step 4: Simplify right side
    394,885.58x = 116,398,257,729.75
  5. Step 5: Solve for x
    x = 116,398,257,729.75/394,885.58
  6. Step 6: Final answer
    x = 294,764.52

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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.