Finding the Fourth Proportional to 194,205.44, 268,132.40 and 121,717.28
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Solution
The fourth proportional to 194,205.44, 268,132.40 and 121,717.28 is: 168,050.63
Step by Step Solution
- Step 1: Write the proportion equation
194,205.44 : 268,132.40 = 121,717.28 : x - Step 2: Convert to fraction form
194,205.44/268,132.40 = 121,717.28/x - Step 3: Cross multiply
194,205.44x = 268,132.40 × 121,717.28 - Step 4: Simplify right side
194,205.44x = 32,636,346,407.87 - Step 5: Solve for x
x = 32,636,346,407.87/194,205.44 - Step 6: Final answer
x = 168,050.63
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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.