Finding the Fourth Proportional to 309,139.41, 463,105.42 and 213,059.44
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Solution
The fourth proportional to 309,139.41, 463,105.42 and 213,059.44 is: 319,173.09
Step by Step Solution
- Step 1: Write the proportion equation
309,139.41 : 463,105.42 = 213,059.44 : x - Step 2: Convert to fraction form
309,139.41/463,105.42 = 213,059.44/x - Step 3: Cross multiply
309,139.41x = 463,105.42 × 213,059.44 - Step 4: Simplify right side
309,139.41x = 98,668,981,492.40 - Step 5: Solve for x
x = 98,668,981,492.40/309,139.41 - Step 6: Final answer
x = 319,173.09
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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.