Finding the Fourth Proportional to 319,971.92, 441,421.80 and 192,575.12
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Solution
The fourth proportional to 319,971.92, 441,421.80 and 192,575.12 is: 265,669.74
Step by Step Solution
- Step 1: Write the proportion equation
319,971.92 : 441,421.80 = 192,575.12 : x - Step 2: Convert to fraction form
319,971.92/441,421.80 = 192,575.12/x - Step 3: Cross multiply
319,971.92x = 441,421.80 × 192,575.12 - Step 4: Simplify right side
319,971.92x = 85,006,856,105.62 - Step 5: Solve for x
x = 85,006,856,105.62/319,971.92 - Step 6: Final answer
x = 265,669.74
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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.