Finding the Fourth Proportional to 305,536.86, 421,691.58 and 178,212.48
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Solution
The fourth proportional to 305,536.86, 421,691.58 and 178,212.48 is: 245,962.80
Step by Step Solution
- Step 1: Write the proportion equation
305,536.86 : 421,691.58 = 178,212.48 : x - Step 2: Convert to fraction form
305,536.86/421,691.58 = 178,212.48/x - Step 3: Cross multiply
305,536.86x = 421,691.58 × 178,212.48 - Step 4: Simplify right side
305,536.86x = 75,150,702,266.92 - Step 5: Solve for x
x = 75,150,702,266.92/305,536.86 - Step 6: Final answer
x = 245,962.80
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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.