Finding the Fourth Proportional to 426,283.44, 638,997.48 and 145,608.72
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Solution
The fourth proportional to 426,283.44, 638,997.48 and 145,608.72 is: 218,266.99
Step by Step Solution
- Step 1: Write the proportion equation
426,283.44 : 638,997.48 = 145,608.72 : x - Step 2: Convert to fraction form
426,283.44/638,997.48 = 145,608.72/x - Step 3: Cross multiply
426,283.44x = 638,997.48 × 145,608.72 - Step 4: Simplify right side
426,283.44x = 93,043,605,146.03 - Step 5: Solve for x
x = 93,043,605,146.03/426,283.44 - Step 6: Final answer
x = 218,266.99
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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.