Finding the Fourth Proportional to 378,274.63, 522,003.28 and 206,188.81
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Solution
The fourth proportional to 378,274.63, 522,003.28 and 206,188.81 is: 284,531.99
Step by Step Solution
- Step 1: Write the proportion equation
378,274.63 : 522,003.28 = 206,188.81 : x - Step 2: Convert to fraction form
378,274.63/522,003.28 = 206,188.81/x - Step 3: Cross multiply
378,274.63x = 522,003.28 × 206,188.81 - Step 4: Simplify right side
378,274.63x = 107,631,235,119.30 - Step 5: Solve for x
x = 107,631,235,119.30/378,274.63 - Step 6: Final answer
x = 284,531.99
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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.