Finding the Fourth Proportional to 228,826.68, 343,001.73 and 76,910.99
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Solution
The fourth proportional to 228,826.68, 343,001.73 and 76,910.99 is: 115,286.39
Step by Step Solution
- Step 1: Write the proportion equation
228,826.68 : 343,001.73 = 76,910.99 : x - Step 2: Convert to fraction form
228,826.68/343,001.73 = 76,910.99/x - Step 3: Cross multiply
228,826.68x = 343,001.73 × 76,910.99 - Step 4: Simplify right side
228,826.68x = 26,380,600,911.00 - Step 5: Solve for x
x = 26,380,600,911.00/228,826.68 - Step 6: Final answer
x = 115,286.39
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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.