Finding the Fourth Proportional to 266,081.70, 399,122.55 and 252,959.70
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Solution
The fourth proportional to 266,081.70, 399,122.55 and 252,959.70 is: 379,439.55
Step by Step Solution
- Step 1: Write the proportion equation
266,081.70 : 399,122.55 = 252,959.70 : x - Step 2: Convert to fraction form
266,081.70/399,122.55 = 252,959.70/x - Step 3: Cross multiply
266,081.70x = 399,122.55 × 252,959.70 - Step 4: Simplify right side
266,081.70x = 100,961,920,511.24 - Step 5: Solve for x
x = 100,961,920,511.24/266,081.70 - Step 6: Final answer
x = 379,439.55
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1.5x scale
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.