Finding the Fourth Proportional to 228,129.75, 342,194.63 and 61,917.75
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Solution
The fourth proportional to 228,129.75, 342,194.63 and 61,917.75 is: 92,876.63
Step by Step Solution
- Step 1: Write the proportion equation
228,129.75 : 342,194.63 = 61,917.75 : x - Step 2: Convert to fraction form
228,129.75/342,194.63 = 61,917.75/x - Step 3: Cross multiply
228,129.75x = 342,194.63 × 61,917.75 - Step 4: Simplify right side
228,129.75x = 21,187,921,242.09 - Step 5: Solve for x
x = 21,187,921,242.09/228,129.75 - Step 6: Final answer
x = 92,876.63
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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.