Finding the Fourth Proportional to 181,432.04, 272,194.07 and 128,228.69
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Solution
The fourth proportional to 181,432.04, 272,194.07 and 128,228.69 is: 192,375.56
Step by Step Solution
- Step 1: Write the proportion equation
181,432.04 : 272,194.07 = 128,228.69 : x - Step 2: Convert to fraction form
181,432.04/272,194.07 = 128,228.69/x - Step 3: Cross multiply
181,432.04x = 272,194.07 × 128,228.69 - Step 4: Simplify right side
181,432.04x = 34,903,089,061.21 - Step 5: Solve for x
x = 34,903,089,061.21/181,432.04 - Step 6: Final answer
x = 192,375.56
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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.