Finding the Fourth Proportional to 215,442.38, 323,163.91 and 88,943.79
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Solution
The fourth proportional to 215,442.38, 323,163.91 and 88,943.79 is: 133,415.82
Step by Step Solution
- Step 1: Write the proportion equation
215,442.38 : 323,163.91 = 88,943.79 : x - Step 2: Convert to fraction form
215,442.38/323,163.91 = 88,943.79/x - Step 3: Cross multiply
215,442.38x = 323,163.91 × 88,943.79 - Step 4: Simplify right side
215,442.38x = 28,743,422,451.87 - Step 5: Solve for x
x = 28,743,422,451.87/215,442.38 - Step 6: Final answer
x = 133,415.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.