Finding the Fourth Proportional to 285,809.21, 394,388.28 and 164,989.42
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Solution
The fourth proportional to 285,809.21, 394,388.28 and 164,989.42 is: 227,668.99
Step by Step Solution
- Step 1: Write the proportion equation
285,809.21 : 394,388.28 = 164,989.42 : x - Step 2: Convert to fraction form
285,809.21/394,388.28 = 164,989.42/x - Step 3: Cross multiply
285,809.21x = 394,388.28 × 164,989.42 - Step 4: Simplify right side
285,809.21x = 65,069,893,572.00 - Step 5: Solve for x
x = 65,069,893,572.00/285,809.21 - Step 6: Final answer
x = 227,668.99
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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.