Finding the Fourth Proportional to 436,906.36, 655,140.30 and 212,125.96
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Solution
The fourth proportional to 436,906.36, 655,140.30 and 212,125.96 is: 318,082.50
Step by Step Solution
- Step 1: Write the proportion equation
436,906.36 : 655,140.30 = 212,125.96 : x - Step 2: Convert to fraction form
436,906.36/655,140.30 = 212,125.96/x - Step 3: Cross multiply
436,906.36x = 655,140.30 × 212,125.96 - Step 4: Simplify right side
436,906.36x = 138,972,265,072.19 - Step 5: Solve for x
x = 138,972,265,072.19/436,906.36 - Step 6: Final answer
x = 318,082.50
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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.