Finding the Fourth Proportional to 332,378.63, 458,676.64 and 189,135.60
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Solution
The fourth proportional to 332,378.63, 458,676.64 and 189,135.60 is: 261,003.79
Step by Step Solution
- Step 1: Write the proportion equation
332,378.63 : 458,676.64 = 189,135.60 : x - Step 2: Convert to fraction form
332,378.63/458,676.64 = 189,135.60/x - Step 3: Cross multiply
332,378.63x = 458,676.64 × 189,135.60 - Step 4: Simplify right side
332,378.63x = 86,752,081,512.38 - Step 5: Solve for x
x = 86,752,081,512.38/332,378.63 - Step 6: Final answer
x = 261,003.79
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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.