Finding the Fourth Proportional to 252,808.87, 348,878.04 and 139,631.62
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Solution
The fourth proportional to 252,808.87, 348,878.04 and 139,631.62 is: 192,692.63
Step by Step Solution
- Step 1: Write the proportion equation
252,808.87 : 348,878.04 = 139,631.62 : x - Step 2: Convert to fraction form
252,808.87/348,878.04 = 139,631.62/x - Step 3: Cross multiply
252,808.87x = 348,878.04 × 139,631.62 - Step 4: Simplify right side
252,808.87x = 48,714,405,907.62 - Step 5: Solve for x
x = 48,714,405,907.62/252,808.87 - Step 6: Final answer
x = 192,692.63
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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.