Finding the Fourth Proportional to 218,771.46, 328,164.21 and 69,013.14
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Solution
The fourth proportional to 218,771.46, 328,164.21 and 69,013.14 is: 103,521.92
Step by Step Solution
- Step 1: Write the proportion equation
218,771.46 : 328,164.21 = 69,013.14 : x - Step 2: Convert to fraction form
218,771.46/328,164.21 = 69,013.14/x - Step 3: Cross multiply
218,771.46x = 328,164.21 × 69,013.14 - Step 4: Simplify right side
218,771.46x = 22,647,642,567.72 - Step 5: Solve for x
x = 22,647,642,567.72/218,771.46 - Step 6: Final answer
x = 103,521.92
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.