Finding the Fourth Proportional to 212,608.38, 318,868.74 and 94,204.20
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Solution
The fourth proportional to 212,608.38, 318,868.74 and 94,204.20 is: 141,286.88
Step by Step Solution
- Step 1: Write the proportion equation
212,608.38 : 318,868.74 = 94,204.20 : x - Step 2: Convert to fraction form
212,608.38/318,868.74 = 94,204.20/x - Step 3: Cross multiply
212,608.38x = 318,868.74 × 94,204.20 - Step 4: Simplify right side
212,608.38x = 30,038,774,556.71 - Step 5: Solve for x
x = 30,038,774,556.71/212,608.38 - Step 6: Final answer
x = 141,286.88
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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.