Finding the Fourth Proportional to 204,368.40, 306,240.30 and 85,974.84
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Solution
The fourth proportional to 204,368.40, 306,240.30 and 85,974.84 is: 128,830.88
Step by Step Solution
- Step 1: Write the proportion equation
204,368.40 : 306,240.30 = 85,974.84 : x - Step 2: Convert to fraction form
204,368.40/306,240.30 = 85,974.84/x - Step 3: Cross multiply
204,368.40x = 306,240.30 × 85,974.84 - Step 4: Simplify right side
204,368.40x = 26,328,960,794.05 - Step 5: Solve for x
x = 26,328,960,794.05/204,368.40 - Step 6: Final answer
x = 128,830.88
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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.