Finding the Fourth Proportional to 238,714.39, 329,418.21 and 131,284.09
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Solution
The fourth proportional to 238,714.39, 329,418.21 and 131,284.09 is: 181,167.84
Step by Step Solution
- Step 1: Write the proportion equation
238,714.39 : 329,418.21 = 131,284.09 : x - Step 2: Convert to fraction form
238,714.39/329,418.21 = 131,284.09/x - Step 3: Cross multiply
238,714.39x = 329,418.21 × 131,284.09 - Step 4: Simplify right side
238,714.39x = 43,247,369,929.28 - Step 5: Solve for x
x = 43,247,369,929.28/238,714.39 - Step 6: Final answer
x = 181,167.84
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1.5x scale
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.