Finding the Fourth Proportional to 331,147.92, 456,971.43 and 187,899.42
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Solution
The fourth proportional to 331,147.92, 456,971.43 and 187,899.42 is: 259,293.99
Step by Step Solution
- Step 1: Write the proportion equation
331,147.92 : 456,971.43 = 187,899.42 : x - Step 2: Convert to fraction form
331,147.92/456,971.43 = 187,899.42/x - Step 3: Cross multiply
331,147.92x = 456,971.43 × 187,899.42 - Step 4: Simplify right side
331,147.92x = 85,864,666,653.57 - Step 5: Solve for x
x = 85,864,666,653.57/331,147.92 - Step 6: Final answer
x = 259,293.99
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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.