Finding the Fourth Proportional to 231,886.80, 347,302.08 and 138,198.96
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Solution
The fourth proportional to 231,886.80, 347,302.08 and 138,198.96 is: 206,983.69
Step by Step Solution
- Step 1: Write the proportion equation
231,886.80 : 347,302.08 = 138,198.96 : x - Step 2: Convert to fraction form
231,886.80/347,302.08 = 138,198.96/x - Step 3: Cross multiply
231,886.80x = 347,302.08 × 138,198.96 - Step 4: Simplify right side
231,886.80x = 47,996,786,261.84 - Step 5: Solve for x
x = 47,996,786,261.84/231,886.80 - Step 6: Final answer
x = 206,983.69
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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.