Finding the Fourth Proportional to 204,313.45, 306,558.30 and 77,991.63
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Solution
The fourth proportional to 204,313.45, 306,558.30 and 77,991.63 is: 117,021.09
Step by Step Solution
- Step 1: Write the proportion equation
204,313.45 : 306,558.30 = 77,991.63 : x - Step 2: Convert to fraction form
204,313.45/306,558.30 = 77,991.63/x - Step 3: Cross multiply
204,313.45x = 306,558.30 × 77,991.63 - Step 4: Simplify right side
204,313.45x = 23,908,981,507.03 - Step 5: Solve for x
x = 23,908,981,507.03/204,313.45 - Step 6: Final answer
x = 117,021.09
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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.