Finding the Fourth Proportional to 218,489.62, 301,511.03 and 121,693.17
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Solution
The fourth proportional to 218,489.62, 301,511.03 and 121,693.17 is: 167,933.99
Step by Step Solution
- Step 1: Write the proportion equation
218,489.62 : 301,511.03 = 121,693.17 : x - Step 2: Convert to fraction form
218,489.62/301,511.03 = 121,693.17/x - Step 3: Cross multiply
218,489.62x = 301,511.03 × 121,693.17 - Step 4: Simplify right side
218,489.62x = 36,691,833,030.67 - Step 5: Solve for x
x = 36,691,833,030.67/218,489.62 - Step 6: Final answer
x = 167,933.99
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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.