Finding the Fourth Proportional to 236,714.38, 326,660.79 and 129,284.84
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Solution
The fourth proportional to 236,714.38, 326,660.79 and 129,284.84 is: 178,410.31
Step by Step Solution
- Step 1: Write the proportion equation
236,714.38 : 326,660.79 = 129,284.84 : x - Step 2: Convert to fraction form
236,714.38/326,660.79 = 129,284.84/x - Step 3: Cross multiply
236,714.38x = 326,660.79 × 129,284.84 - Step 4: Simplify right side
236,714.38x = 42,232,286,336.12 - Step 5: Solve for x
x = 42,232,286,336.12/236,714.38 - Step 6: Final answer
x = 178,410.31
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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.