Finding the Fourth Proportional to 226,513.06, 312,604.31 and 135,872.84
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Solution
The fourth proportional to 226,513.06, 312,604.31 and 135,872.84 is: 187,514.30
Step by Step Solution
- Step 1: Write the proportion equation
226,513.06 : 312,604.31 = 135,872.84 : x - Step 2: Convert to fraction form
226,513.06/312,604.31 = 135,872.84/x - Step 3: Cross multiply
226,513.06x = 312,604.31 × 135,872.84 - Step 4: Simplify right side
226,513.06x = 42,474,436,517.13 - Step 5: Solve for x
x = 42,474,436,517.13/226,513.06 - Step 6: Final answer
x = 187,514.30
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1.5x scale
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.