Finding the Fourth Proportional to 355,172.97, 490,156.20 and 202,214.19
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Solution
The fourth proportional to 355,172.97, 490,156.20 and 202,214.19 is: 279,065.55
Step by Step Solution
- Step 1: Write the proportion equation
355,172.97 : 490,156.20 = 202,214.19 : x - Step 2: Convert to fraction form
355,172.97/490,156.20 = 202,214.19/x - Step 3: Cross multiply
355,172.97x = 490,156.20 × 202,214.19 - Step 4: Simplify right side
355,172.97x = 99,116,538,956.48 - Step 5: Solve for x
x = 99,116,538,956.48/355,172.97 - Step 6: Final answer
x = 279,065.55
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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.