Finding the Fourth Proportional to 471,877.12, 707,616.96 and 191,198.08
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Solution
The fourth proportional to 471,877.12, 707,616.96 and 191,198.08 is: 286,716.60
Step by Step Solution
- Step 1: Write the proportion equation
471,877.12 : 707,616.96 = 191,198.08 : x - Step 2: Convert to fraction form
471,877.12/707,616.96 = 191,198.08/x - Step 3: Cross multiply
471,877.12x = 707,616.96 × 191,198.08 - Step 4: Simplify right side
471,877.12x = 135,295,004,127.44 - Step 5: Solve for x
x = 135,295,004,127.44/471,877.12 - Step 6: Final answer
x = 286,716.60
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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.