Finding the Fourth Proportional to 512,808.08, 769,212.68 and 133,728.50
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Solution
The fourth proportional to 512,808.08, 769,212.68 and 133,728.50 is: 200,592.90
Step by Step Solution
- Step 1: Write the proportion equation
512,808.08 : 769,212.68 = 133,728.50 : x - Step 2: Convert to fraction form
512,808.08/769,212.68 = 133,728.50/x - Step 3: Cross multiply
512,808.08x = 769,212.68 × 133,728.50 - Step 4: Simplify right side
512,808.08x = 102,865,657,877.38 - Step 5: Solve for x
x = 102,865,657,877.38/512,808.08 - Step 6: Final answer
x = 200,592.90
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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.