Finding the Fourth Proportional to 215,807.18, 323,699.09 and 66,047.49
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Solution
The fourth proportional to 215,807.18, 323,699.09 and 66,047.49 is: 99,067.66
Step by Step Solution
- Step 1: Write the proportion equation
215,807.18 : 323,699.09 = 66,047.49 : x - Step 2: Convert to fraction form
215,807.18/323,699.09 = 66,047.49/x - Step 3: Cross multiply
215,807.18x = 323,699.09 × 66,047.49 - Step 4: Simplify right side
215,807.18x = 21,379,512,079.55 - Step 5: Solve for x
x = 21,379,512,079.55/215,807.18 - Step 6: Final answer
x = 99,067.66
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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.