Finding the Fourth Proportional to 285,388.97, 394,101.51 and 213,644.43
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Solution
The fourth proportional to 285,388.97, 394,101.51 and 213,644.43 is: 295,027.50
Step by Step Solution
- Step 1: Write the proportion equation
285,388.97 : 394,101.51 = 213,644.43 : x - Step 2: Convert to fraction form
285,388.97/394,101.51 = 213,644.43/x - Step 3: Cross multiply
285,388.97x = 394,101.51 × 213,644.43 - Step 4: Simplify right side
285,388.97x = 84,197,592,466.09 - Step 5: Solve for x
x = 84,197,592,466.09/285,388.97 - Step 6: Final answer
x = 295,027.50
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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.