Finding the Fourth Proportional to 155,309.97, 214,276.22 and 126,580.23
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Solution
The fourth proportional to 155,309.97, 214,276.22 and 126,580.23 is: 174,638.71
Step by Step Solution
- Step 1: Write the proportion equation
155,309.97 : 214,276.22 = 126,580.23 : x - Step 2: Convert to fraction form
155,309.97/214,276.22 = 126,580.23/x - Step 3: Cross multiply
155,309.97x = 214,276.22 × 126,580.23 - Step 4: Simplify right side
155,309.97x = 27,123,132,578.23 - Step 5: Solve for x
x = 27,123,132,578.23/155,309.97 - Step 6: Final answer
x = 174,638.71
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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.