Finding the Fourth Proportional to 324,082.10, 486,123.15 and 212,107.70
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Solution
The fourth proportional to 324,082.10, 486,123.15 and 212,107.70 is: 318,161.55
Step by Step Solution
- Step 1: Write the proportion equation
324,082.10 : 486,123.15 = 212,107.70 : x - Step 2: Convert to fraction form
324,082.10/486,123.15 = 212,107.70/x - Step 3: Cross multiply
324,082.10x = 486,123.15 × 212,107.70 - Step 4: Simplify right side
324,082.10x = 103,110,463,263.26 - Step 5: Solve for x
x = 103,110,463,263.26/324,082.10 - Step 6: Final answer
x = 318,161.55
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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.