Finding the Fourth Proportional to 211,186.26, 316,779.19 and 84,826.52
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Solution
The fourth proportional to 211,186.26, 316,779.19 and 84,826.52 is: 127,239.70
Step by Step Solution
- Step 1: Write the proportion equation
211,186.26 : 316,779.19 = 84,826.52 : x - Step 2: Convert to fraction form
211,186.26/316,779.19 = 84,826.52/x - Step 3: Cross multiply
211,186.26x = 316,779.19 × 84,826.52 - Step 4: Simplify right side
211,186.26x = 26,871,276,296.12 - Step 5: Solve for x
x = 26,871,276,296.12/211,186.26 - Step 6: Final answer
x = 127,239.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.