Finding the Fourth Proportional to 378,339.79, 522,112.95 and 208,579.99
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Solution
The fourth proportional to 378,339.79, 522,112.95 and 208,579.99 is: 287,842.61
Step by Step Solution
- Step 1: Write the proportion equation
378,339.79 : 522,112.95 = 208,579.99 : x - Step 2: Convert to fraction form
378,339.79/522,112.95 = 208,579.99/x - Step 3: Cross multiply
378,339.79x = 522,112.95 × 208,579.99 - Step 4: Simplify right side
378,339.79x = 108,902,310,236.41 - Step 5: Solve for x
x = 108,902,310,236.41/378,339.79 - Step 6: Final answer
x = 287,842.61
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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.