Finding the Fourth Proportional to 215,659.32, 297,605.88 and 120,163.96
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Solution
The fourth proportional to 215,659.32, 297,605.88 and 120,163.96 is: 165,824.05
Step by Step Solution
- Step 1: Write the proportion equation
215,659.32 : 297,605.88 = 120,163.96 : x - Step 2: Convert to fraction form
215,659.32/297,605.88 = 120,163.96/x - Step 3: Cross multiply
215,659.32x = 297,605.88 × 120,163.96 - Step 4: Simplify right side
215,659.32x = 35,761,501,060.08 - Step 5: Solve for x
x = 35,761,501,060.08/215,659.32 - Step 6: Final answer
x = 165,824.05
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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.