Finding the Fourth Proportional to 331,142.42, 456,963.86 and 187,893.92
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Solution
The fourth proportional to 331,142.42, 456,963.86 and 187,893.92 is: 259,286.42
Step by Step Solution
- Step 1: Write the proportion equation
331,142.42 : 456,963.86 = 187,893.92 : x - Step 2: Convert to fraction form
331,142.42/456,963.86 = 187,893.92/x - Step 3: Cross multiply
331,142.42x = 456,963.86 × 187,893.92 - Step 4: Simplify right side
331,142.42x = 85,860,730,953.73 - Step 5: Solve for x
x = 85,860,730,953.73/331,142.42 - Step 6: Final answer
x = 259,286.42
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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.