Finding the Fourth Proportional to 217,855.70, 326,540.55 and 84,691.70
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Solution
The fourth proportional to 217,855.70, 326,540.55 and 84,691.70 is: 126,943.08
Step by Step Solution
- Step 1: Write the proportion equation
217,855.70 : 326,540.55 = 84,691.70 : x - Step 2: Convert to fraction form
217,855.70/326,540.55 = 84,691.70/x - Step 3: Cross multiply
217,855.70x = 326,540.55 × 84,691.70 - Step 4: Simplify right side
217,855.70x = 27,655,274,298.44 - Step 5: Solve for x
x = 27,655,274,298.44/217,855.70 - Step 6: Final answer
x = 126,943.08
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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.