Finding the Fourth Proportional to 211,211.10, 291,463.92 and 115,716.96
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Solution
The fourth proportional to 211,211.10, 291,463.92 and 115,716.96 is: 159,685.35
Step by Step Solution
- Step 1: Write the proportion equation
211,211.10 : 291,463.92 = 115,716.96 : x - Step 2: Convert to fraction form
211,211.10/291,463.92 = 115,716.96/x - Step 3: Cross multiply
211,211.10x = 291,463.92 × 115,716.96 - Step 4: Simplify right side
211,211.10x = 33,727,318,772.08 - Step 5: Solve for x
x = 33,727,318,772.08/211,211.10 - Step 6: Final answer
x = 159,685.35
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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.