Finding the Fourth Proportional to 311,941.10, 465,655.11 and 274,107.20
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Solution
The fourth proportional to 311,941.10, 465,655.11 and 274,107.20 is: 409,177.95
Step by Step Solution
- Step 1: Write the proportion equation
311,941.10 : 465,655.11 = 274,107.20 : x - Step 2: Convert to fraction form
311,941.10/465,655.11 = 274,107.20/x - Step 3: Cross multiply
311,941.10x = 465,655.11 × 274,107.20 - Step 4: Simplify right side
311,941.10x = 127,639,418,367.79 - Step 5: Solve for x
x = 127,639,418,367.79/311,941.10 - Step 6: Final answer
x = 409,177.95
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.