Finding the Fourth Proportional to 225,839.41, 311,664.11 and 127,714.79
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Solution
The fourth proportional to 225,839.41, 311,664.11 and 127,714.79 is: 176,249.65
Step by Step Solution
- Step 1: Write the proportion equation
225,839.41 : 311,664.11 = 127,714.79 : x - Step 2: Convert to fraction form
225,839.41/311,664.11 = 127,714.79/x - Step 3: Cross multiply
225,839.41x = 311,664.11 × 127,714.79 - Step 4: Simplify right side
225,839.41x = 39,804,116,499.77 - Step 5: Solve for x
x = 39,804,116,499.77/225,839.41 - Step 6: Final answer
x = 176,249.65
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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.