Finding the Fourth Proportional to 198,513.57, 273,948.21 and 107,869.55
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Solution
The fourth proportional to 198,513.57, 273,948.21 and 107,869.55 is: 148,859.69
Step by Step Solution
- Step 1: Write the proportion equation
198,513.57 : 273,948.21 = 107,869.55 : x - Step 2: Convert to fraction form
198,513.57/273,948.21 = 107,869.55/x - Step 3: Cross multiply
198,513.57x = 273,948.21 × 107,869.55 - Step 4: Simplify right side
198,513.57x = 29,550,668,766.26 - Step 5: Solve for x
x = 29,550,668,766.26/198,513.57 - Step 6: Final answer
x = 148,859.69
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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.