Finding the Fourth Proportional to 378,509.56, 522,343.68 and 206,427.89
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Solution
The fourth proportional to 378,509.56, 522,343.68 and 206,427.89 is: 284,870.75
Step by Step Solution
- Step 1: Write the proportion equation
378,509.56 : 522,343.68 = 206,427.89 : x - Step 2: Convert to fraction form
378,509.56/522,343.68 = 206,427.89/x - Step 3: Cross multiply
378,509.56x = 522,343.68 × 206,427.89 - Step 4: Simplify right side
378,509.56x = 107,826,303,717.24 - Step 5: Solve for x
x = 107,826,303,717.24/378,509.56 - Step 6: Final answer
x = 284,870.75
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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.