Finding the Fourth Proportional to 259,770.81, 389,311.75 and 133,405.95
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Solution
The fourth proportional to 259,770.81, 389,311.75 and 133,405.95 is: 199,932.02
Step by Step Solution
- Step 1: Write the proportion equation
259,770.81 : 389,311.75 = 133,405.95 : x - Step 2: Convert to fraction form
259,770.81/389,311.75 = 133,405.95/x - Step 3: Cross multiply
259,770.81x = 389,311.75 × 133,405.95 - Step 4: Simplify right side
259,770.81x = 51,936,503,854.91 - Step 5: Solve for x
x = 51,936,503,854.91/259,770.81 - Step 6: Final answer
x = 199,932.02
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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.