Finding the Fourth Proportional to 201,144.19, 277,539.71 and 115,129.48
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Solution
The fourth proportional to 201,144.19, 277,539.71 and 115,129.48 is: 158,856.20
Step by Step Solution
- Step 1: Write the proportion equation
201,144.19 : 277,539.71 = 115,129.48 : x - Step 2: Convert to fraction form
201,144.19/277,539.71 = 115,129.48/x - Step 3: Cross multiply
201,144.19x = 277,539.71 × 115,129.48 - Step 4: Simplify right side
201,144.19x = 31,953,001,916.00 - Step 5: Solve for x
x = 31,953,001,916.00/201,144.19 - Step 6: Final answer
x = 158,856.20
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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.