Finding the Fourth Proportional to 226,700.64, 312,873.84 and 129,939.12
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Solution
The fourth proportional to 226,700.64, 312,873.84 and 129,939.12 is: 179,331.44
Step by Step Solution
- Step 1: Write the proportion equation
226,700.64 : 312,873.84 = 129,939.12 : x - Step 2: Convert to fraction form
226,700.64/312,873.84 = 129,939.12/x - Step 3: Cross multiply
226,700.64x = 312,873.84 × 129,939.12 - Step 4: Simplify right side
226,700.64x = 40,654,551,440.62 - Step 5: Solve for x
x = 40,654,551,440.62/226,700.64 - Step 6: Final answer
x = 179,331.44
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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.