Finding the Fourth Proportional to 215,932.36, 297,979.62 and 117,811.96
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Solution
The fourth proportional to 215,932.36, 297,979.62 and 117,811.96 is: 162,576.67
Step by Step Solution
- Step 1: Write the proportion equation
215,932.36 : 297,979.62 = 117,811.96 : x - Step 2: Convert to fraction form
215,932.36/297,979.62 = 117,811.96/x - Step 3: Cross multiply
215,932.36x = 297,979.62 × 117,811.96 - Step 4: Simplify right side
215,932.36x = 35,105,563,072.26 - Step 5: Solve for x
x = 35,105,563,072.26/215,932.36 - Step 6: Final answer
x = 162,576.67
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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.