Finding the Fourth Proportional to 228,626.11, 315,503.97 and 126,658.19
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Solution
The fourth proportional to 228,626.11, 315,503.97 and 126,658.19 is: 174,788.27
Step by Step Solution
- Step 1: Write the proportion equation
228,626.11 : 315,503.97 = 126,658.19 : x - Step 2: Convert to fraction form
228,626.11/315,503.97 = 126,658.19/x - Step 3: Cross multiply
228,626.11x = 315,503.97 × 126,658.19 - Step 4: Simplify right side
228,626.11x = 39,961,160,989.25 - Step 5: Solve for x
x = 39,961,160,989.25/228,626.11 - Step 6: Final answer
x = 174,788.27
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1.5x scale
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.