Finding the Fourth Proportional to 359,738.19, 496,432.40 and 198,589.09
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Solution
The fourth proportional to 359,738.19, 496,432.40 and 198,589.09 is: 274,049.47
Step by Step Solution
- Step 1: Write the proportion equation
359,738.19 : 496,432.40 = 198,589.09 : x - Step 2: Convert to fraction form
359,738.19/496,432.40 = 198,589.09/x - Step 3: Cross multiply
359,738.19x = 496,432.40 × 198,589.09 - Step 4: Simplify right side
359,738.19x = 98,586,057,569.57 - Step 5: Solve for x
x = 98,586,057,569.57/359,738.19 - Step 6: Final answer
x = 274,049.47
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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.