Finding the Fourth Proportional to 386,871.36, 580,097.92 and 134,133.44
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Solution
The fourth proportional to 386,871.36, 580,097.92 and 134,133.44 is: 201,127.66
Step by Step Solution
- Step 1: Write the proportion equation
386,871.36 : 580,097.92 = 134,133.44 : x - Step 2: Convert to fraction form
386,871.36/580,097.92 = 134,133.44/x - Step 3: Cross multiply
386,871.36x = 580,097.92 × 134,133.44 - Step 4: Simplify right side
386,871.36x = 77,810,529,546.44 - Step 5: Solve for x
x = 77,810,529,546.44/386,871.36 - Step 6: Final answer
x = 201,127.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.