Finding the Fourth Proportional to 421,148.88, 631,297.68 and 181,419.12
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Solution
The fourth proportional to 421,148.88, 631,297.68 and 181,419.12 is: 271,945.33
Step by Step Solution
- Step 1: Write the proportion equation
421,148.88 : 631,297.68 = 181,419.12 : x - Step 2: Convert to fraction form
421,148.88/631,297.68 = 181,419.12/x - Step 3: Cross multiply
421,148.88x = 631,297.68 × 181,419.12 - Step 4: Simplify right side
421,148.88x = 114,529,469,563.64 - Step 5: Solve for x
x = 114,529,469,563.64/421,148.88 - Step 6: Final answer
x = 271,945.33
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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.