Finding the Fourth Proportional to 285,375.84, 428,067.95 and 135,631.41
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Solution
The fourth proportional to 285,375.84, 428,067.95 and 135,631.41 is: 203,449.11
Step by Step Solution
- Step 1: Write the proportion equation
285,375.84 : 428,067.95 = 135,631.41 : x - Step 2: Convert to fraction form
285,375.84/428,067.95 = 135,631.41/x - Step 3: Cross multiply
285,375.84x = 428,067.95 × 135,631.41 - Step 4: Simplify right side
285,375.84x = 58,059,459,634.31 - Step 5: Solve for x
x = 58,059,459,634.31/285,375.84 - Step 6: Final answer
x = 203,449.11
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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.