Finding the Fourth Proportional to 217,376.07, 299,975.18 and 121,882.47
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Solution
The fourth proportional to 217,376.07, 299,975.18 and 121,882.47 is: 168,195.68
Step by Step Solution
- Step 1: Write the proportion equation
217,376.07 : 299,975.18 = 121,882.47 : x - Step 2: Convert to fraction form
217,376.07/299,975.18 = 121,882.47/x - Step 3: Cross multiply
217,376.07x = 299,975.18 × 121,882.47 - Step 4: Simplify right side
217,376.07x = 36,561,715,267.68 - Step 5: Solve for x
x = 36,561,715,267.68/217,376.07 - Step 6: Final answer
x = 168,195.68
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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.