Finding the Fourth Proportional to 198,211.20, 273,531.65 and 107,567.19
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Solution
The fourth proportional to 198,211.20, 273,531.65 and 107,567.19 is: 148,442.82
Step by Step Solution
- Step 1: Write the proportion equation
198,211.20 : 273,531.65 = 107,567.19 : x - Step 2: Convert to fraction form
198,211.20/273,531.65 = 107,567.19/x - Step 3: Cross multiply
198,211.20x = 273,531.65 × 107,567.19 - Step 4: Simplify right side
198,211.20x = 29,423,030,428.73 - Step 5: Solve for x
x = 29,423,030,428.73/198,211.20 - Step 6: Final answer
x = 148,442.82
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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.