Finding the Fourth Proportional to 215,912.18, 297,959.28 and 120,425.02
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Solution
The fourth proportional to 215,912.18, 297,959.28 and 120,425.02 is: 166,186.79
Step by Step Solution
- Step 1: Write the proportion equation
215,912.18 : 297,959.28 = 120,425.02 : x - Step 2: Convert to fraction form
215,912.18/297,959.28 = 120,425.02/x - Step 3: Cross multiply
215,912.18x = 297,959.28 × 120,425.02 - Step 4: Simplify right side
215,912.18x = 35,881,752,253.19 - Step 5: Solve for x
x = 35,881,752,253.19/215,912.18 - Step 6: Final answer
x = 166,186.79
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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.