Finding the Fourth Proportional to 219,107.57, 328,697.68 and 76,915.97
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Solution
The fourth proportional to 219,107.57, 328,697.68 and 76,915.97 is: 115,386.70
Step by Step Solution
- Step 1: Write the proportion equation
219,107.57 : 328,697.68 = 76,915.97 : x - Step 2: Convert to fraction form
219,107.57/328,697.68 = 76,915.97/x - Step 3: Cross multiply
219,107.57x = 328,697.68 × 76,915.97 - Step 4: Simplify right side
219,107.57x = 25,282,099,250.46 - Step 5: Solve for x
x = 25,282,099,250.46/219,107.57 - Step 6: Final answer
x = 115,386.70
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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.