Finding the Fourth Proportional to 308,218.11, 425,354.12 and 172,252.05
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Solution
The fourth proportional to 308,218.11, 425,354.12 and 172,252.05 is: 237,715.17
Step by Step Solution
- Step 1: Write the proportion equation
308,218.11 : 425,354.12 = 172,252.05 : x - Step 2: Convert to fraction form
308,218.11/425,354.12 = 172,252.05/x - Step 3: Cross multiply
308,218.11x = 425,354.12 × 172,252.05 - Step 4: Simplify right side
308,218.11x = 73,268,119,145.95 - Step 5: Solve for x
x = 73,268,119,145.95/308,218.11 - Step 6: Final answer
x = 237,715.17
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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.