Finding the Fourth Proportional to 305,514.92, 458,163.02 and 105,781.70
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Solution
The fourth proportional to 305,514.92, 458,163.02 and 105,781.70 is: 158,634.69
Step by Step Solution
- Step 1: Write the proportion equation
305,514.92 : 458,163.02 = 105,781.70 : x - Step 2: Convert to fraction form
305,514.92/458,163.02 = 105,781.70/x - Step 3: Cross multiply
305,514.92x = 458,163.02 × 105,781.70 - Step 4: Simplify right side
305,514.92x = 48,465,263,132.73 - Step 5: Solve for x
x = 48,465,263,132.73/305,514.92 - Step 6: Final answer
x = 158,634.69
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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.