Finding the Fourth Proportional to 263,631.20, 363,847.26 and 161,638.63
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Solution
The fourth proportional to 263,631.20, 363,847.26 and 161,638.63 is: 223,083.51
Step by Step Solution
- Step 1: Write the proportion equation
263,631.20 : 363,847.26 = 161,638.63 : x - Step 2: Convert to fraction form
263,631.20/363,847.26 = 161,638.63/x - Step 3: Cross multiply
263,631.20x = 363,847.26 × 161,638.63 - Step 4: Simplify right side
263,631.20x = 58,811,772,635.65 - Step 5: Solve for x
x = 58,811,772,635.65/263,631.20 - Step 6: Final answer
x = 223,083.51
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1.5x scale
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.