Finding the Fourth Proportional to 386,447.11, 533,327.97 and 214,382.05
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Solution
The fourth proportional to 386,447.11, 533,327.97 and 214,382.05 is: 295,864.40
Step by Step Solution
- Step 1: Write the proportion equation
386,447.11 : 533,327.97 = 214,382.05 : x - Step 2: Convert to fraction form
386,447.11/533,327.97 = 214,382.05/x - Step 3: Cross multiply
386,447.11x = 533,327.97 × 214,382.05 - Step 4: Simplify right side
386,447.11x = 114,335,943,530.94 - Step 5: Solve for x
x = 114,335,943,530.94/386,447.11 - Step 6: Final answer
x = 295,864.40
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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.