Finding the Fourth Proportional to 227,639.70, 341,459.55 and 212,087.70
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Solution
The fourth proportional to 227,639.70, 341,459.55 and 212,087.70 is: 318,131.55
Step by Step Solution
- Step 1: Write the proportion equation
227,639.70 : 341,459.55 = 212,087.70 : x - Step 2: Convert to fraction form
227,639.70/341,459.55 = 212,087.70/x - Step 3: Cross multiply
227,639.70x = 341,459.55 × 212,087.70 - Step 4: Simplify right side
227,639.70x = 72,419,370,602.54 - Step 5: Solve for x
x = 72,419,370,602.54/227,639.70 - Step 6: Final answer
x = 318,131.55
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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.