Finding the Fourth Proportional to 181,343.20, 272,014.80 and 107,615.20
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Solution
The fourth proportional to 181,343.20, 272,014.80 and 107,615.20 is: 161,422.80
Step by Step Solution
- Step 1: Write the proportion equation
181,343.20 : 272,014.80 = 107,615.20 : x - Step 2: Convert to fraction form
181,343.20/272,014.80 = 107,615.20/x - Step 3: Cross multiply
181,343.20x = 272,014.80 × 107,615.20 - Step 4: Simplify right side
181,343.20x = 29,272,927,104.96 - Step 5: Solve for x
x = 29,272,927,104.96/181,343.20 - Step 6: Final answer
x = 161,422.80
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1.5x scale
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.