Finding the Fourth Proportional to 231,444.36, 319,378.16 and 129,452.14
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Solution
The fourth proportional to 231,444.36, 319,378.16 and 129,452.14 is: 178,635.53
Step by Step Solution
- Step 1: Write the proportion equation
231,444.36 : 319,378.16 = 129,452.14 : x - Step 2: Convert to fraction form
231,444.36/319,378.16 = 129,452.14/x - Step 3: Cross multiply
231,444.36x = 319,378.16 × 129,452.14 - Step 4: Simplify right side
231,444.36x = 41,344,186,281.26 - Step 5: Solve for x
x = 41,344,186,281.26/231,444.36 - Step 6: Final answer
x = 178,635.53
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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.