Finding the Fourth Proportional to 204,306.30, 306,350.10 and 85,843.80
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Solution
The fourth proportional to 204,306.30, 306,350.10 and 85,843.80 is: 128,719.75
Step by Step Solution
- Step 1: Write the proportion equation
204,306.30 : 306,350.10 = 85,843.80 : x - Step 2: Convert to fraction form
204,306.30/306,350.10 = 85,843.80/x - Step 3: Cross multiply
204,306.30x = 306,350.10 × 85,843.80 - Step 4: Simplify right side
204,306.30x = 26,298,256,714.38 - Step 5: Solve for x
x = 26,298,256,714.38/204,306.30 - Step 6: Final answer
x = 128,719.75
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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.