Finding the Fourth Proportional to 378,497.80, 522,320.26 and 206,417.05
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Solution
The fourth proportional to 378,497.80, 522,320.26 and 206,417.05 is: 284,851.87
Step by Step Solution
- Step 1: Write the proportion equation
378,497.80 : 522,320.26 = 206,417.05 : x - Step 2: Convert to fraction form
378,497.80/522,320.26 = 206,417.05/x - Step 3: Cross multiply
378,497.80x = 522,320.26 × 206,417.05 - Step 4: Simplify right side
378,497.80x = 107,815,807,224.43 - Step 5: Solve for x
x = 107,815,807,224.43/378,497.80 - Step 6: Final answer
x = 284,851.87
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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.