Finding the Fourth Proportional to 299,912.10, 449,868.15 and 275,417.70
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Solution
The fourth proportional to 299,912.10, 449,868.15 and 275,417.70 is: 413,126.55
Step by Step Solution
- Step 1: Write the proportion equation
299,912.10 : 449,868.15 = 275,417.70 : x - Step 2: Convert to fraction form
299,912.10/449,868.15 = 275,417.70/x - Step 3: Cross multiply
299,912.10x = 449,868.15 × 275,417.70 - Step 4: Simplify right side
299,912.10x = 123,901,651,176.26 - Step 5: Solve for x
x = 123,901,651,176.26/299,912.10 - Step 6: Final answer
x = 413,126.55
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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.