Finding the Fourth Proportional to 202,016.23, 278,782.97 and 121,489.88
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Solution
The fourth proportional to 202,016.23, 278,782.97 and 121,489.88 is: 167,656.38
Step by Step Solution
- Step 1: Write the proportion equation
202,016.23 : 278,782.97 = 121,489.88 : x - Step 2: Convert to fraction form
202,016.23/278,782.97 = 121,489.88/x - Step 3: Cross multiply
202,016.23x = 278,782.97 × 121,489.88 - Step 4: Simplify right side
202,016.23x = 33,869,309,571.34 - Step 5: Solve for x
x = 33,869,309,571.34/202,016.23 - Step 6: Final answer
x = 167,656.38
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.