Finding the Fourth Proportional to 306,368.68, 422,997.06 and 225,805.48
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Solution
The fourth proportional to 306,368.68, 422,997.06 and 225,805.48 is: 311,765.07
Step by Step Solution
- Step 1: Write the proportion equation
306,368.68 : 422,997.06 = 225,805.48 : x - Step 2: Convert to fraction form
306,368.68/422,997.06 = 225,805.48/x - Step 3: Cross multiply
306,368.68x = 422,997.06 × 225,805.48 - Step 4: Simplify right side
306,368.68x = 95,515,054,171.89 - Step 5: Solve for x
x = 95,515,054,171.89/306,368.68 - Step 6: Final answer
x = 311,765.07
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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.