Finding the Fourth Proportional to 378,340.79, 522,114.33 and 208,580.99
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Solution
The fourth proportional to 378,340.79, 522,114.33 and 208,580.99 is: 287,843.99
Step by Step Solution
- Step 1: Write the proportion equation
378,340.79 : 522,114.33 = 208,580.99 : x - Step 2: Convert to fraction form
378,340.79/522,114.33 = 208,580.99/x - Step 3: Cross multiply
378,340.79x = 522,114.33 × 208,580.99 - Step 4: Simplify right side
378,340.79x = 108,903,123,844.59 - Step 5: Solve for x
x = 108,903,123,844.59/378,340.79 - Step 6: Final answer
x = 287,843.99
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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.