Finding the Fourth Proportional to 206,967.39, 285,638.67 and 115,095.84
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Solution
The fourth proportional to 206,967.39, 285,638.67 and 115,095.84 is: 158,845.42
Step by Step Solution
- Step 1: Write the proportion equation
206,967.39 : 285,638.67 = 115,095.84 : x - Step 2: Convert to fraction form
206,967.39/285,638.67 = 115,095.84/x - Step 3: Cross multiply
206,967.39x = 285,638.67 × 115,095.84 - Step 4: Simplify right side
206,967.39x = 32,875,822,660.13 - Step 5: Solve for x
x = 32,875,822,660.13/206,967.39 - Step 6: Final answer
x = 158,845.42
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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.