Finding the Fourth Proportional to 203,139.48, 304,624.98 and 76,757.88
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Solution
The fourth proportional to 203,139.48, 304,624.98 and 76,757.88 is: 115,104.99
Step by Step Solution
- Step 1: Write the proportion equation
203,139.48 : 304,624.98 = 76,757.88 : x - Step 2: Convert to fraction form
203,139.48/304,624.98 = 76,757.88/x - Step 3: Cross multiply
203,139.48x = 304,624.98 × 76,757.88 - Step 4: Simplify right side
203,139.48x = 23,382,367,659.84 - Step 5: Solve for x
x = 23,382,367,659.84/203,139.48 - Step 6: Final answer
x = 115,104.99
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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.