Finding the Fourth Proportional to 422,172.08, 582,579.97 and 231,182.18
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Solution
The fourth proportional to 422,172.08, 582,579.97 and 231,182.18 is: 319,021.82
Step by Step Solution
- Step 1: Write the proportion equation
422,172.08 : 582,579.97 = 231,182.18 : x - Step 2: Convert to fraction form
422,172.08/582,579.97 = 231,182.18/x - Step 3: Cross multiply
422,172.08x = 582,579.97 × 231,182.18 - Step 4: Simplify right side
422,172.08x = 134,682,103,998.08 - Step 5: Solve for x
x = 134,682,103,998.08/422,172.08 - Step 6: Final answer
x = 319,021.82
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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.