Finding the Fourth Proportional to 219,107.06, 328,696.93 and 76,915.46
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Solution
The fourth proportional to 219,107.06, 328,696.93 and 76,915.46 is: 115,385.95
Step by Step Solution
- Step 1: Write the proportion equation
219,107.06 : 328,696.93 = 76,915.46 : x - Step 2: Convert to fraction form
219,107.06/328,696.93 = 76,915.46/x - Step 3: Cross multiply
219,107.06x = 328,696.93 × 76,915.46 - Step 4: Simplify right side
219,107.06x = 25,281,876,489.42 - Step 5: Solve for x
x = 25,281,876,489.42/219,107.06 - Step 6: Final answer
x = 115,385.95
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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.