Finding the Fourth Proportional to 236,857.10, 326,858.84 and 129,424.66
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Solution
The fourth proportional to 236,857.10, 326,858.84 and 129,424.66 is: 178,603.87
Step by Step Solution
- Step 1: Write the proportion equation
236,857.10 : 326,858.84 = 129,424.66 : x - Step 2: Convert to fraction form
236,857.10/326,858.84 = 129,424.66/x - Step 3: Cross multiply
236,857.10x = 326,858.84 × 129,424.66 - Step 4: Simplify right side
236,857.10x = 42,303,594,234.99 - Step 5: Solve for x
x = 42,303,594,234.99/236,857.10 - Step 6: Final answer
x = 178,603.87
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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.