Finding the Fourth Proportional to 284,214.11, 392,201.69 and 161,694.96
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Solution
The fourth proportional to 284,214.11, 392,201.69 and 161,694.96 is: 223,131.20
Step by Step Solution
- Step 1: Write the proportion equation
284,214.11 : 392,201.69 = 161,694.96 : x - Step 2: Convert to fraction form
284,214.11/392,201.69 = 161,694.96/x - Step 3: Cross multiply
284,214.11x = 392,201.69 × 161,694.96 - Step 4: Simplify right side
284,214.11x = 63,417,034,297.25 - Step 5: Solve for x
x = 63,417,034,297.25/284,214.11 - Step 6: Final answer
x = 223,131.20
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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.