Finding the Fourth Proportional to 378,726.26, 522,831.63 and 235,532.44
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Solution
The fourth proportional to 378,726.26, 522,831.63 and 235,532.44 is: 325,152.55
Step by Step Solution
- Step 1: Write the proportion equation
378,726.26 : 522,831.63 = 235,532.44 : x - Step 2: Convert to fraction form
378,726.26/522,831.63 = 235,532.44/x - Step 3: Cross multiply
378,726.26x = 522,831.63 × 235,532.44 - Step 4: Simplify right side
378,726.26x = 123,143,809,099.25 - Step 5: Solve for x
x = 123,143,809,099.25/378,726.26 - Step 6: Final answer
x = 325,152.55
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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.