Finding the Fourth Proportional to 211,174.90, 291,428.08 and 115,687.44
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Solution
The fourth proportional to 211,174.90, 291,428.08 and 115,687.44 is: 159,652.35
Step by Step Solution
- Step 1: Write the proportion equation
211,174.90 : 291,428.08 = 115,687.44 : x - Step 2: Convert to fraction form
211,174.90/291,428.08 = 115,687.44/x - Step 3: Cross multiply
211,174.90x = 291,428.08 × 115,687.44 - Step 4: Simplify right side
211,174.90x = 33,714,568,230.10 - Step 5: Solve for x
x = 33,714,568,230.10/211,174.90 - Step 6: Final answer
x = 159,652.35
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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.