Finding the Fourth Proportional to 315,825.91, 435,884.20 and 201,067.90
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Solution
The fourth proportional to 315,825.91, 435,884.20 and 201,067.90 is: 277,501.99
Step by Step Solution
- Step 1: Write the proportion equation
315,825.91 : 435,884.20 = 201,067.90 : x - Step 2: Convert to fraction form
315,825.91/435,884.20 = 201,067.90/x - Step 3: Cross multiply
315,825.91x = 435,884.20 × 201,067.90 - Step 4: Simplify right side
315,825.91x = 87,642,319,144.80 - Step 5: Solve for x
x = 87,642,319,144.80/315,825.91 - Step 6: Final answer
x = 277,501.99
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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.