Finding the Fourth Proportional to 202,769.22, 279,815.98 and 112,122.18
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Solution
The fourth proportional to 202,769.22, 279,815.98 and 112,122.18 is: 154,725.54
Step by Step Solution
- Step 1: Write the proportion equation
202,769.22 : 279,815.98 = 112,122.18 : x - Step 2: Convert to fraction form
202,769.22/279,815.98 = 112,122.18/x - Step 3: Cross multiply
202,769.22x = 279,815.98 × 112,122.18 - Step 4: Simplify right side
202,769.22x = 31,373,577,676.44 - Step 5: Solve for x
x = 31,373,577,676.44/202,769.22 - Step 6: Final answer
x = 154,725.54
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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.