Finding the Fourth Proportional to 258,198.63, 356,306.97 and 143,474.31
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Solution
The fourth proportional to 258,198.63, 356,306.97 and 143,474.31 is: 197,990.58
Step by Step Solution
- Step 1: Write the proportion equation
258,198.63 : 356,306.97 = 143,474.31 : x - Step 2: Convert to fraction form
258,198.63/356,306.97 = 143,474.31/x - Step 3: Cross multiply
258,198.63x = 356,306.97 × 143,474.31 - Step 4: Simplify right side
258,198.63x = 51,120,896,668.94 - Step 5: Solve for x
x = 51,120,896,668.94/258,198.63 - Step 6: Final answer
x = 197,990.58
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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.