Finding the Fourth Proportional to 192,553.11, 288,971.55 and 91,351.53
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Solution
The fourth proportional to 192,553.11, 288,971.55 and 91,351.53 is: 137,094.61
Step by Step Solution
- Step 1: Write the proportion equation
192,553.11 : 288,971.55 = 91,351.53 : x - Step 2: Convert to fraction form
192,553.11/288,971.55 = 91,351.53/x - Step 3: Cross multiply
192,553.11x = 288,971.55 × 91,351.53 - Step 4: Simplify right side
192,553.11x = 26,397,993,218.97 - Step 5: Solve for x
x = 26,397,993,218.97/192,553.11 - Step 6: Final answer
x = 137,094.61
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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.