Finding the Fourth Proportional to 202,116.96, 278,954.40 and 121,588.92
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Solution
The fourth proportional to 202,116.96, 278,954.40 and 121,588.92 is: 167,812.56
Step by Step Solution
- Step 1: Write the proportion equation
202,116.96 : 278,954.40 = 121,588.92 : x - Step 2: Convert to fraction form
202,116.96/278,954.40 = 121,588.92/x - Step 3: Cross multiply
202,116.96x = 278,954.40 × 121,588.92 - Step 4: Simplify right side
202,116.96x = 33,917,764,225.25 - Step 5: Solve for x
x = 33,917,764,225.25/202,116.96 - Step 6: Final answer
x = 167,812.56
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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.