Finding the Fourth Proportional to 206,812.68, 285,393.96 and 126,374.82
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Solution
The fourth proportional to 206,812.68, 285,393.96 and 126,374.82 is: 174,392.65
Step by Step Solution
- Step 1: Write the proportion equation
206,812.68 : 285,393.96 = 126,374.82 : x - Step 2: Convert to fraction form
206,812.68/285,393.96 = 126,374.82/x - Step 3: Cross multiply
206,812.68x = 285,393.96 × 126,374.82 - Step 4: Simplify right side
206,812.68x = 36,066,610,324.09 - Step 5: Solve for x
x = 36,066,610,324.09/206,812.68 - Step 6: Final answer
x = 174,392.65
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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.