Finding the Fourth Proportional to 211,490.62, 291,861.61 and 115,997.09
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Solution
The fourth proportional to 211,490.62, 291,861.61 and 115,997.09 is: 160,078.48
Step by Step Solution
- Step 1: Write the proportion equation
211,490.62 : 291,861.61 = 115,997.09 : x - Step 2: Convert to fraction form
211,490.62/291,861.61 = 115,997.09/x - Step 3: Cross multiply
211,490.62x = 291,861.61 × 115,997.09 - Step 4: Simplify right side
211,490.62x = 33,855,095,693.41 - Step 5: Solve for x
x = 33,855,095,693.41/211,490.62 - Step 6: Final answer
x = 160,078.48
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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.