Finding the Fourth Proportional to 285,301.92, 393,716.58 and 157,977.48
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Solution
The fourth proportional to 285,301.92, 393,716.58 and 157,977.48 is: 218,008.88
Step by Step Solution
- Step 1: Write the proportion equation
285,301.92 : 393,716.58 = 157,977.48 : x - Step 2: Convert to fraction form
285,301.92/393,716.58 = 157,977.48/x - Step 3: Cross multiply
285,301.92x = 393,716.58 × 157,977.48 - Step 4: Simplify right side
285,301.92x = 62,198,353,142.62 - Step 5: Solve for x
x = 62,198,353,142.62/285,301.92 - Step 6: Final answer
x = 218,008.88
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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.