Finding the Fourth Proportional to 231,346.94, 319,256.58 and 129,371.23
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Solution
The fourth proportional to 231,346.94, 319,256.58 and 129,371.23 is: 178,531.07
Step by Step Solution
- Step 1: Write the proportion equation
231,346.94 : 319,256.58 = 129,371.23 : x - Step 2: Convert to fraction form
231,346.94/319,256.58 = 129,371.23/x - Step 3: Cross multiply
231,346.94x = 319,256.58 × 129,371.23 - Step 4: Simplify right side
231,346.94x = 41,302,616,440.19 - Step 5: Solve for x
x = 41,302,616,440.19/231,346.94 - Step 6: Final answer
x = 178,531.07
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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.