Finding the Fourth Proportional to 394,953.09, 592,670.21 and 142,212.44
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Solution
The fourth proportional to 394,953.09, 592,670.21 and 142,212.44 is: 213,405.28
Step by Step Solution
- Step 1: Write the proportion equation
394,953.09 : 592,670.21 = 142,212.44 : x - Step 2: Convert to fraction form
394,953.09/592,670.21 = 142,212.44/x - Step 3: Cross multiply
394,953.09x = 592,670.21 × 142,212.44 - Step 4: Simplify right side
394,953.09x = 84,285,076,679.41 - Step 5: Solve for x
x = 84,285,076,679.41/394,953.09 - Step 6: Final answer
x = 213,405.28
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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.