Finding the Fourth Proportional to 181,929.20, 272,893.80 and 135,273.20
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Solution
The fourth proportional to 181,929.20, 272,893.80 and 135,273.20 is: 202,909.80
Step by Step Solution
- Step 1: Write the proportion equation
181,929.20 : 272,893.80 = 135,273.20 : x - Step 2: Convert to fraction form
181,929.20/272,893.80 = 135,273.20/x - Step 3: Cross multiply
181,929.20x = 272,893.80 × 135,273.20 - Step 4: Simplify right side
181,929.20x = 36,915,217,586.16 - Step 5: Solve for x
x = 36,915,217,586.16/181,929.20 - Step 6: Final answer
x = 202,909.80
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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.