Finding the Fourth Proportional to 318,102.21, 438,969.92 and 174,861.23
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Solution
The fourth proportional to 318,102.21, 438,969.92 and 174,861.23 is: 241,302.37
Step by Step Solution
- Step 1: Write the proportion equation
318,102.21 : 438,969.92 = 174,861.23 : x - Step 2: Convert to fraction form
318,102.21/438,969.92 = 174,861.23/x - Step 3: Cross multiply
318,102.21x = 438,969.92 × 174,861.23 - Step 4: Simplify right side
318,102.21x = 76,758,817,075.05 - Step 5: Solve for x
x = 76,758,817,075.05/318,102.21 - Step 6: Final answer
x = 241,302.37
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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.