Finding the Fourth Proportional to 378,917.24, 522,905.84 and 209,151.44
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Solution
The fourth proportional to 378,917.24, 522,905.84 and 209,151.44 is: 288,629.01
Step by Step Solution
- Step 1: Write the proportion equation
378,917.24 : 522,905.84 = 209,151.44 : x - Step 2: Convert to fraction form
378,917.24/522,905.84 = 209,151.44/x - Step 3: Cross multiply
378,917.24x = 522,905.84 × 209,151.44 - Step 4: Simplify right side
378,917.24x = 109,366,509,420.41 - Step 5: Solve for x
x = 109,366,509,420.41/378,917.24 - Step 6: Final answer
x = 288,629.01
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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.