Finding the Fourth Proportional to 378,479.74, 522,301.64 and 206,398.05
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Solution
The fourth proportional to 378,479.74, 522,301.64 and 206,398.05 is: 284,829.09
Step by Step Solution
- Step 1: Write the proportion equation
378,479.74 : 522,301.64 = 206,398.05 : x - Step 2: Convert to fraction form
378,479.74/522,301.64 = 206,398.05/x - Step 3: Cross multiply
378,479.74x = 522,301.64 × 206,398.05 - Step 4: Simplify right side
378,479.74x = 107,802,040,227.63 - Step 5: Solve for x
x = 107,802,040,227.63/378,479.74 - Step 6: Final answer
x = 284,829.09
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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.