Finding the Fourth Proportional to 383,201.28, 528,817.92 and 222,149.70
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Solution
The fourth proportional to 383,201.28, 528,817.92 and 222,149.70 is: 306,566.68
Step by Step Solution
- Step 1: Write the proportion equation
383,201.28 : 528,817.92 = 222,149.70 : x - Step 2: Convert to fraction form
383,201.28/528,817.92 = 222,149.70/x - Step 3: Cross multiply
383,201.28x = 528,817.92 × 222,149.70 - Step 4: Simplify right side
383,201.28x = 117,476,742,282.62 - Step 5: Solve for x
x = 117,476,742,282.62/383,201.28 - Step 6: Final answer
x = 306,566.68
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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.