Finding the Fourth Proportional to 378,898.38, 522,866.74 and 225,857.65
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Solution
The fourth proportional to 378,898.38, 522,866.74 and 225,857.65 is: 311,675.79
Step by Step Solution
- Step 1: Write the proportion equation
378,898.38 : 522,866.74 = 225,857.65 : x - Step 2: Convert to fraction form
378,898.38/522,866.74 = 225,857.65/x - Step 3: Cross multiply
378,898.38x = 522,866.74 × 225,857.65 - Step 4: Simplify right side
378,898.38x = 118,093,453,159.56 - Step 5: Solve for x
x = 118,093,453,159.56/378,898.38 - Step 6: Final answer
x = 311,675.79
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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.