Finding the Fourth Proportional to 331,853.10, 497,722.05 and 121,382.70
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Solution
The fourth proportional to 331,853.10, 497,722.05 and 121,382.70 is: 182,052.98
Step by Step Solution
- Step 1: Write the proportion equation
331,853.10 : 497,722.05 = 121,382.70 : x - Step 2: Convert to fraction form
331,853.10/497,722.05 = 121,382.70/x - Step 3: Cross multiply
331,853.10x = 497,722.05 × 121,382.70 - Step 4: Simplify right side
331,853.10x = 60,414,846,278.54 - Step 5: Solve for x
x = 60,414,846,278.54/331,853.10 - Step 6: Final answer
x = 182,052.98
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.