Finding the Fourth Proportional to 378,518.81, 522,356.45 and 206,437.14
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Solution
The fourth proportional to 378,518.81, 522,356.45 and 206,437.14 is: 284,883.52
Step by Step Solution
- Step 1: Write the proportion equation
378,518.81 : 522,356.45 = 206,437.14 : x - Step 2: Convert to fraction form
378,518.81/522,356.45 = 206,437.14/x - Step 3: Cross multiply
378,518.81x = 522,356.45 × 206,437.14 - Step 4: Simplify right side
378,518.81x = 107,833,770,566.37 - Step 5: Solve for x
x = 107,833,770,566.37/378,518.81 - Step 6: Final answer
x = 284,883.52
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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.