Finding the Fourth Proportional to 217,476.18, 300,096.96 and 121,964.42
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Solution
The fourth proportional to 217,476.18, 300,096.96 and 121,964.42 is: 168,299.59
Step by Step Solution
- Step 1: Write the proportion equation
217,476.18 : 300,096.96 = 121,964.42 : x - Step 2: Convert to fraction form
217,476.18/300,096.96 = 121,964.42/x - Step 3: Cross multiply
217,476.18x = 300,096.96 × 121,964.42 - Step 4: Simplify right side
217,476.18x = 36,601,151,670.16 - Step 5: Solve for x
x = 36,601,151,670.16/217,476.18 - Step 6: Final answer
x = 168,299.59
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1.5x scale
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.