Finding the Fourth Proportional to 236,857.08, 326,863.62 and 129,427.11
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Solution
The fourth proportional to 236,857.08, 326,863.62 and 129,427.11 is: 178,609.88
Step by Step Solution
- Step 1: Write the proportion equation
236,857.08 : 326,863.62 = 129,427.11 : x - Step 2: Convert to fraction form
236,857.08/326,863.62 = 129,427.11/x - Step 3: Cross multiply
236,857.08x = 326,863.62 × 129,427.11 - Step 4: Simplify right side
236,857.08x = 42,305,013,700.74 - Step 5: Solve for x
x = 42,305,013,700.74/236,857.08 - Step 6: Final answer
x = 178,609.88
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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.