Finding the Fourth Proportional to 231,440.36, 319,372.63 and 129,448.15
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Solution
The fourth proportional to 231,440.36, 319,372.63 and 129,448.15 is: 178,630.02
Step by Step Solution
- Step 1: Write the proportion equation
231,440.36 : 319,372.63 = 129,448.15 : x - Step 2: Convert to fraction form
231,440.36/319,372.63 = 129,448.15/x - Step 3: Cross multiply
231,440.36x = 319,372.63 × 129,448.15 - Step 4: Simplify right side
231,440.36x = 41,342,196,114.13 - Step 5: Solve for x
x = 41,342,196,114.13/231,440.36 - Step 6: Final answer
x = 178,630.02
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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.