Finding the Fourth Proportional to 218,286.44, 301,233.12 and 121,488.68
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Solution
The fourth proportional to 218,286.44, 301,233.12 and 121,488.68 is: 167,653.17
Step by Step Solution
- Step 1: Write the proportion equation
218,286.44 : 301,233.12 = 121,488.68 : x - Step 2: Convert to fraction form
218,286.44/301,233.12 = 121,488.68/x - Step 3: Cross multiply
218,286.44x = 301,233.12 × 121,488.68 - Step 4: Simplify right side
218,286.44x = 36,596,414,121.08 - Step 5: Solve for x
x = 36,596,414,121.08/218,286.44 - Step 6: Final answer
x = 167,653.17
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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.