Finding the Fourth Proportional to 202,775.85, 279,832.49 and 112,137.91
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Solution
The fourth proportional to 202,775.85, 279,832.49 and 112,137.91 is: 154,751.32
Step by Step Solution
- Step 1: Write the proportion equation
202,775.85 : 279,832.49 = 112,137.91 : x - Step 2: Convert to fraction form
202,775.85/279,832.49 = 112,137.91/x - Step 3: Cross multiply
202,775.85x = 279,832.49 × 112,137.91 - Step 4: Simplify right side
202,775.85x = 31,379,830,578.70 - Step 5: Solve for x
x = 31,379,830,578.70/202,775.85 - Step 6: Final answer
x = 154,751.32
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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.