Finding the Fourth Proportional to 228,290.98, 315,035.49 and 126,313.78
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Solution
The fourth proportional to 228,290.98, 315,035.49 and 126,313.78 is: 174,309.66
Step by Step Solution
- Step 1: Write the proportion equation
228,290.98 : 315,035.49 = 126,313.78 : x - Step 2: Convert to fraction form
228,290.98/315,035.49 = 126,313.78/x - Step 3: Cross multiply
228,290.98x = 315,035.49 × 126,313.78 - Step 4: Simplify right side
228,290.98x = 39,793,323,576.05 - Step 5: Solve for x
x = 39,793,323,576.05/228,290.98 - Step 6: Final answer
x = 174,309.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.