Finding the Fourth Proportional to 389,609.82, 584,473.16 and 136,845.75
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Solution
The fourth proportional to 389,609.82, 584,473.16 and 136,845.75 is: 205,289.15
Step by Step Solution
- Step 1: Write the proportion equation
389,609.82 : 584,473.16 = 136,845.75 : x - Step 2: Convert to fraction form
389,609.82/584,473.16 = 136,845.75/x - Step 3: Cross multiply
389,609.82x = 584,473.16 × 136,845.75 - Step 4: Simplify right side
389,609.82x = 79,982,668,277.18 - Step 5: Solve for x
x = 79,982,668,277.18/389,609.82 - Step 6: Final answer
x = 205,289.15
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.