Finding the Fourth Proportional to 336,986.19, 505,042.97 and 137,072.79
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Solution
The fourth proportional to 336,986.19, 505,042.97 and 137,072.79 is: 205,431.71
Step by Step Solution
- Step 1: Write the proportion equation
336,986.19 : 505,042.97 = 137,072.79 : x - Step 2: Convert to fraction form
336,986.19/505,042.97 = 137,072.79/x - Step 3: Cross multiply
336,986.19x = 505,042.97 × 137,072.79 - Step 4: Simplify right side
336,986.19x = 69,227,648,282.42 - Step 5: Solve for x
x = 69,227,648,282.42/336,986.19 - Step 6: Final answer
x = 205,431.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.