Finding the Fourth Proportional to 422,808.10, 634,115.08 and 252,078.12
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Solution
The fourth proportional to 422,808.10, 634,115.08 and 252,078.12 is: 378,059.31
Step by Step Solution
- Step 1: Write the proportion equation
422,808.10 : 634,115.08 = 252,078.12 : x - Step 2: Convert to fraction form
422,808.10/634,115.08 = 252,078.12/x - Step 3: Cross multiply
422,808.10x = 634,115.08 × 252,078.12 - Step 4: Simplify right side
422,808.10x = 159,846,537,230.05 - Step 5: Solve for x
x = 159,846,537,230.05/422,808.10 - Step 6: Final answer
x = 378,059.31
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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.