Finding the Fourth Proportional to 149,821.80, 224,732.70 and 39,013.80
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Solution
The fourth proportional to 149,821.80, 224,732.70 and 39,013.80 is: 58,520.70
Step by Step Solution
- Step 1: Write the proportion equation
149,821.80 : 224,732.70 = 39,013.80 : x - Step 2: Convert to fraction form
149,821.80/224,732.70 = 39,013.80/x - Step 3: Cross multiply
149,821.80x = 224,732.70 × 39,013.80 - Step 4: Simplify right side
149,821.80x = 8,767,676,611.26 - Step 5: Solve for x
x = 8,767,676,611.26/149,821.80 - Step 6: Final answer
x = 58,520.70
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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.