Finding the Fourth Proportional to 471,616.10, 707,715.79 and 191,135.78
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Solution
The fourth proportional to 471,616.10, 707,715.79 and 191,135.78 is: 286,821.87
Step by Step Solution
- Step 1: Write the proportion equation
471,616.10 : 707,715.79 = 191,135.78 : x - Step 2: Convert to fraction form
471,616.10/707,715.79 = 191,135.78/x - Step 3: Cross multiply
471,616.10x = 707,715.79 × 191,135.78 - Step 4: Simplify right side
471,616.10x = 135,269,809,539.97 - Step 5: Solve for x
x = 135,269,809,539.97/471,616.10 - Step 6: Final answer
x = 286,821.87
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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.