Finding the Fourth Proportional to 212,395.89, 318,728.27 and 192,446.09
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Solution
The fourth proportional to 212,395.89, 318,728.27 and 192,446.09 is: 288,790.94
Step by Step Solution
- Step 1: Write the proportion equation
212,395.89 : 318,728.27 = 192,446.09 : x - Step 2: Convert to fraction form
212,395.89/318,728.27 = 192,446.09/x - Step 3: Cross multiply
212,395.89x = 318,728.27 × 192,446.09 - Step 4: Simplify right side
212,395.89x = 61,338,009,333.96 - Step 5: Solve for x
x = 61,338,009,333.96/212,395.89 - Step 6: Final answer
x = 288,790.94
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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.