Finding the Fourth Proportional to 413,523.10, 620,371.05 and 133,068.70
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Solution
The fourth proportional to 413,523.10, 620,371.05 and 133,068.70 is: 199,630.85
Step by Step Solution
- Step 1: Write the proportion equation
413,523.10 : 620,371.05 = 133,068.70 : x - Step 2: Convert to fraction form
413,523.10/620,371.05 = 133,068.70/x - Step 3: Cross multiply
413,523.10x = 620,371.05 × 133,068.70 - Step 4: Simplify right side
413,523.10x = 82,551,969,141.14 - Step 5: Solve for x
x = 82,551,969,141.14/413,523.10 - Step 6: Final answer
x = 199,630.85
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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.