Finding the Fourth Proportional to 317,540.10, 438,006.01 and 188,387.14
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Solution
The fourth proportional to 317,540.10, 438,006.01 and 188,387.14 is: 259,855.99
Step by Step Solution
- Step 1: Write the proportion equation
317,540.10 : 438,006.01 = 188,387.14 : x - Step 2: Convert to fraction form
317,540.10/438,006.01 = 188,387.14/x - Step 3: Cross multiply
317,540.10x = 438,006.01 × 188,387.14 - Step 4: Simplify right side
317,540.10x = 82,514,697,336.68 - Step 5: Solve for x
x = 82,514,697,336.68/317,540.10 - Step 6: Final answer
x = 259,855.99
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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.