Finding the Fourth Proportional to 212,521.92, 318,414.73 and 149,221.63
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Solution
The fourth proportional to 212,521.92, 318,414.73 and 149,221.63 is: 223,573.95
Step by Step Solution
- Step 1: Write the proportion equation
212,521.92 : 318,414.73 = 149,221.63 : x - Step 2: Convert to fraction form
212,521.92/318,414.73 = 149,221.63/x - Step 3: Cross multiply
212,521.92x = 318,414.73 × 149,221.63 - Step 4: Simplify right side
212,521.92x = 47,514,365,026.61 - Step 5: Solve for x
x = 47,514,365,026.61/212,521.92 - Step 6: Final answer
x = 223,573.95
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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.