Finding the Fourth Proportional to 378,514.08, 522,326.88 and 217,395.36
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Solution
The fourth proportional to 378,514.08, 522,326.88 and 217,395.36 is: 299,992.65
Step by Step Solution
- Step 1: Write the proportion equation
378,514.08 : 522,326.88 = 217,395.36 : x - Step 2: Convert to fraction form
378,514.08/522,326.88 = 217,395.36/x - Step 3: Cross multiply
378,514.08x = 522,326.88 × 217,395.36 - Step 4: Simplify right side
378,514.08x = 113,551,440,115.28 - Step 5: Solve for x
x = 113,551,440,115.28/378,514.08 - Step 6: Final answer
x = 299,992.65
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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.