Finding the Fourth Proportional to 331,891.76, 497,682.12 and 121,382.48
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Solution
The fourth proportional to 331,891.76, 497,682.12 and 121,382.48 is: 182,016.84
Step by Step Solution
- Step 1: Write the proportion equation
331,891.76 : 497,682.12 = 121,382.48 : x - Step 2: Convert to fraction form
331,891.76/497,682.12 = 121,382.48/x - Step 3: Cross multiply
331,891.76x = 497,682.12 × 121,382.48 - Step 4: Simplify right side
331,891.76x = 60,409,889,977.26 - Step 5: Solve for x
x = 60,409,889,977.26/331,891.76 - Step 6: Final answer
x = 182,016.84
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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.