Finding the Fourth Proportional to 198,391.68, 273,778.56 and 107,748.48
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Solution
The fourth proportional to 198,391.68, 273,778.56 and 107,748.48 is: 148,691.84
Step by Step Solution
- Step 1: Write the proportion equation
198,391.68 : 273,778.56 = 107,748.48 : x - Step 2: Convert to fraction form
198,391.68/273,778.56 = 107,748.48/x - Step 3: Cross multiply
198,391.68x = 273,778.56 × 107,748.48 - Step 4: Simplify right side
198,391.68x = 29,499,223,696.59 - Step 5: Solve for x
x = 29,499,223,696.59/198,391.68 - Step 6: Final answer
x = 148,691.84
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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.