Finding the Fourth Proportional to 202,073.76, 278,922.96 and 117,211.68
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Solution
The fourth proportional to 202,073.76, 278,922.96 and 117,211.68 is: 161,787.60
Step by Step Solution
- Step 1: Write the proportion equation
202,073.76 : 278,922.96 = 117,211.68 : x - Step 2: Convert to fraction form
202,073.76/278,922.96 = 117,211.68/x - Step 3: Cross multiply
202,073.76x = 278,922.96 × 117,211.68 - Step 4: Simplify right side
202,073.76x = 32,693,028,732.17 - Step 5: Solve for x
x = 32,693,028,732.17/202,073.76 - Step 6: Final answer
x = 161,787.60
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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.