Finding the Fourth Proportional to 218,958.62, 328,292.12 and 78,699.02
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Solution
The fourth proportional to 218,958.62, 328,292.12 and 78,699.02 is: 117,996.12
Step by Step Solution
- Step 1: Write the proportion equation
218,958.62 : 328,292.12 = 78,699.02 : x - Step 2: Convert to fraction form
218,958.62/328,292.12 = 78,699.02/x - Step 3: Cross multiply
218,958.62x = 328,292.12 × 78,699.02 - Step 4: Simplify right side
218,958.62x = 25,836,268,117.72 - Step 5: Solve for x
x = 25,836,268,117.72/218,958.62 - Step 6: Final answer
x = 117,996.12
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.