Finding the Fourth Proportional to 211,169.87, 291,414.48 and 115,679.96
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Solution
The fourth proportional to 211,169.87, 291,414.48 and 115,679.96 is: 159,638.38
Step by Step Solution
- Step 1: Write the proportion equation
211,169.87 : 291,414.48 = 115,679.96 : x - Step 2: Convert to fraction form
211,169.87/291,414.48 = 115,679.96/x - Step 3: Cross multiply
211,169.87x = 291,414.48 × 115,679.96 - Step 4: Simplify right side
211,169.87x = 33,710,816,118.36 - Step 5: Solve for x
x = 33,710,816,118.36/211,169.87 - Step 6: Final answer
x = 159,638.38
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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.