Finding the Fourth Proportional to 212,524.79, 317,129.49 and 193,661.91
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Solution
The fourth proportional to 212,524.79, 317,129.49 and 193,661.91 is: 288,982.31
Step by Step Solution
- Step 1: Write the proportion equation
212,524.79 : 317,129.49 = 193,661.91 : x - Step 2: Convert to fraction form
212,524.79/317,129.49 = 193,661.91/x - Step 3: Cross multiply
212,524.79x = 317,129.49 × 193,661.91 - Step 4: Simplify right side
212,524.79x = 61,415,902,750.73 - Step 5: Solve for x
x = 61,415,902,750.73/212,524.79 - Step 6: Final answer
x = 288,982.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.