Finding the Fourth Proportional to 512,747.12, 769,247.56 and 213,137.84
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Solution
The fourth proportional to 512,747.12, 769,247.56 and 213,137.84 is: 319,759.50
Step by Step Solution
- Step 1: Write the proportion equation
512,747.12 : 769,247.56 = 213,137.84 : x - Step 2: Convert to fraction form
512,747.12/769,247.56 = 213,137.84/x - Step 3: Cross multiply
512,747.12x = 769,247.56 × 213,137.84 - Step 4: Simplify right side
512,747.12x = 163,955,763,363.67 - Step 5: Solve for x
x = 163,955,763,363.67/512,747.12 - Step 6: Final answer
x = 319,759.50
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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.