Finding the Fourth Proportional to 212,748.40, 319,122.60 and 94,431.70
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Solution
The fourth proportional to 212,748.40, 319,122.60 and 94,431.70 is: 141,647.55
Step by Step Solution
- Step 1: Write the proportion equation
212,748.40 : 319,122.60 = 94,431.70 : x - Step 2: Convert to fraction form
212,748.40/319,122.60 = 94,431.70/x - Step 3: Cross multiply
212,748.40x = 319,122.60 × 94,431.70 - Step 4: Simplify right side
212,748.40x = 30,135,289,626.42 - Step 5: Solve for x
x = 30,135,289,626.42/212,748.40 - Step 6: Final answer
x = 141,647.55
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1.5x scale
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.