Finding the Fourth Proportional to 386,784.36, 580,204.49 and 161,918.64
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Solution
The fourth proportional to 386,784.36, 580,204.49 and 161,918.64 is: 242,889.66
Step by Step Solution
- Step 1: Write the proportion equation
386,784.36 : 580,204.49 = 161,918.64 : x - Step 2: Convert to fraction form
386,784.36/580,204.49 = 161,918.64/x - Step 3: Cross multiply
386,784.36x = 580,204.49 × 161,918.64 - Step 4: Simplify right side
386,784.36x = 93,945,921,133.10 - Step 5: Solve for x
x = 93,945,921,133.10/386,784.36 - Step 6: Final answer
x = 242,889.66
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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.