Finding the Fourth Proportional to 200,894.26, 277,420.80 and 129,397.18
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Solution
The fourth proportional to 200,894.26, 277,420.80 and 129,397.18 is: 178,688.38
Step by Step Solution
- Step 1: Write the proportion equation
200,894.26 : 277,420.80 = 129,397.18 : x - Step 2: Convert to fraction form
200,894.26/277,420.80 = 129,397.18/x - Step 3: Cross multiply
200,894.26x = 277,420.80 × 129,397.18 - Step 4: Simplify right side
200,894.26x = 35,897,469,193.34 - Step 5: Solve for x
x = 35,897,469,193.34/200,894.26 - Step 6: Final answer
x = 178,688.38
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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.