Finding the Fourth Proportional to 229,963.13, 317,353.97 and 129,361.13
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Solution
The fourth proportional to 229,963.13, 317,353.97 and 129,361.13 is: 178,521.09
Step by Step Solution
- Step 1: Write the proportion equation
229,963.13 : 317,353.97 = 129,361.13 : x - Step 2: Convert to fraction form
229,963.13/317,353.97 = 129,361.13/x - Step 3: Cross multiply
229,963.13x = 317,353.97 × 129,361.13 - Step 4: Simplify right side
229,963.13x = 41,053,266,905.82 - Step 5: Solve for x
x = 41,053,266,905.82/229,963.13 - Step 6: Final answer
x = 178,521.09
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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.