Finding the Fourth Proportional to 258,503.42, 387,755.27 and 118,163.63
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Solution
The fourth proportional to 258,503.42, 387,755.27 and 118,163.63 is: 177,245.50
Step by Step Solution
- Step 1: Write the proportion equation
258,503.42 : 387,755.27 = 118,163.63 : x - Step 2: Convert to fraction form
258,503.42/387,755.27 = 118,163.63/x - Step 3: Cross multiply
258,503.42x = 387,755.27 × 118,163.63 - Step 4: Simplify right side
258,503.42x = 45,818,567,725.24 - Step 5: Solve for x
x = 45,818,567,725.24/258,503.42 - Step 6: Final answer
x = 177,245.50
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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.