Finding the Fourth Proportional to 331,857.19, 497,784.84 and 82,539.19
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Solution
The fourth proportional to 331,857.19, 497,784.84 and 82,539.19 is: 123,808.55
Step by Step Solution
- Step 1: Write the proportion equation
331,857.19 : 497,784.84 = 82,539.19 : x - Step 2: Convert to fraction form
331,857.19/497,784.84 = 82,539.19/x - Step 3: Cross multiply
331,857.19x = 497,784.84 × 82,539.19 - Step 4: Simplify right side
331,857.19x = 41,086,757,487.88 - Step 5: Solve for x
x = 41,086,757,487.88/331,857.19 - Step 6: Final answer
x = 123,808.55
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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.