Finding the Fourth Proportional to 198,319.25, 273,679.70 and 107,674.48
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Solution
The fourth proportional to 198,319.25, 273,679.70 and 107,674.48 is: 148,590.31
Step by Step Solution
- Step 1: Write the proportion equation
198,319.25 : 273,679.70 = 107,674.48 : x - Step 2: Convert to fraction form
198,319.25/273,679.70 = 107,674.48/x - Step 3: Cross multiply
198,319.25x = 273,679.70 × 107,674.48 - Step 4: Simplify right side
198,319.25x = 29,468,319,187.78 - Step 5: Solve for x
x = 29,468,319,187.78/198,319.25 - Step 6: Final answer
x = 148,590.31
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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.