Finding the Fourth Proportional to 313,022.18, 431,628.26 and 232,598.90
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Solution
The fourth proportional to 313,022.18, 431,628.26 and 232,598.90 is: 320,732.09
Step by Step Solution
- Step 1: Write the proportion equation
313,022.18 : 431,628.26 = 232,598.90 : x - Step 2: Convert to fraction form
313,022.18/431,628.26 = 232,598.90/x - Step 3: Cross multiply
313,022.18x = 431,628.26 × 232,598.90 - Step 4: Simplify right side
313,022.18x = 100,396,258,484.91 - Step 5: Solve for x
x = 100,396,258,484.91/313,022.18 - Step 6: Final answer
x = 320,732.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.