Finding the Fourth Proportional to 268,745.12, 403,366.90 and 135,719.02
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Solution
The fourth proportional to 268,745.12, 403,366.90 and 135,719.02 is: 203,704.39
Step by Step Solution
- Step 1: Write the proportion equation
268,745.12 : 403,366.90 = 135,719.02 : x - Step 2: Convert to fraction form
268,745.12/403,366.90 = 135,719.02/x - Step 3: Cross multiply
268,745.12x = 403,366.90 × 135,719.02 - Step 4: Simplify right side
268,745.12x = 54,744,560,368.44 - Step 5: Solve for x
x = 54,744,560,368.44/268,745.12 - Step 6: Final answer
x = 203,704.39
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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.