Finding the Fourth Proportional to 215,622.56, 323,418.68 and 80,660.88
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Solution
The fourth proportional to 215,622.56, 323,418.68 and 80,660.88 is: 120,985.65
Step by Step Solution
- Step 1: Write the proportion equation
215,622.56 : 323,418.68 = 80,660.88 : x - Step 2: Convert to fraction form
215,622.56/323,418.68 = 80,660.88/x - Step 3: Cross multiply
215,622.56x = 323,418.68 × 80,660.88 - Step 4: Simplify right side
215,622.56x = 26,087,235,337.24 - Step 5: Solve for x
x = 26,087,235,337.24/215,622.56 - Step 6: Final answer
x = 120,985.65
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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.