Finding the Fourth Proportional to 211,333.24, 291,638.55 and 115,843.96
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Solution
The fourth proportional to 211,333.24, 291,638.55 and 115,843.96 is: 159,863.94
Step by Step Solution
- Step 1: Write the proportion equation
211,333.24 : 291,638.55 = 115,843.96 : x - Step 2: Convert to fraction form
211,333.24/291,638.55 = 115,843.96/x - Step 3: Cross multiply
211,333.24x = 291,638.55 × 115,843.96 - Step 4: Simplify right side
211,333.24x = 33,784,564,520.66 - Step 5: Solve for x
x = 33,784,564,520.66/211,333.24 - Step 6: Final answer
x = 159,863.94
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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.