Finding the Fourth Proportional to 213,933.92, 320,427.86 and 146,305.68
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Solution
The fourth proportional to 213,933.92, 320,427.86 and 146,305.68 is: 219,135.03
Step by Step Solution
- Step 1: Write the proportion equation
213,933.92 : 320,427.86 = 146,305.68 : x - Step 2: Convert to fraction form
213,933.92/320,427.86 = 146,305.68/x - Step 3: Cross multiply
213,933.92x = 320,427.86 × 146,305.68 - Step 4: Simplify right side
213,933.92x = 46,880,414,918.85 - Step 5: Solve for x
x = 46,880,414,918.85/213,933.92 - Step 6: Final answer
x = 219,135.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.