Finding the Fourth Proportional to 217,015.14, 299,472.62 and 121,517.04
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Solution
The fourth proportional to 217,015.14, 299,472.62 and 121,517.04 is: 167,688.88
Step by Step Solution
- Step 1: Write the proportion equation
217,015.14 : 299,472.62 = 121,517.04 : x - Step 2: Convert to fraction form
217,015.14/299,472.62 = 121,517.04/x - Step 3: Cross multiply
217,015.14x = 299,472.62 × 121,517.04 - Step 4: Simplify right side
217,015.14x = 36,391,026,343.44 - Step 5: Solve for x
x = 36,391,026,343.44/217,015.14 - Step 6: Final answer
x = 167,688.88
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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.