Finding the Fourth Proportional to 198,286.68, 273,637.74 and 107,643.48
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Solution
The fourth proportional to 198,286.68, 273,637.74 and 107,643.48 is: 148,549.15
Step by Step Solution
- Step 1: Write the proportion equation
198,286.68 : 273,637.74 = 107,643.48 : x - Step 2: Convert to fraction form
198,286.68/273,637.74 = 107,643.48/x - Step 3: Cross multiply
198,286.68x = 273,637.74 × 107,643.48 - Step 4: Simplify right side
198,286.68x = 29,455,318,592.94 - Step 5: Solve for x
x = 29,455,318,592.94/198,286.68 - Step 6: Final answer
x = 148,549.15
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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.