Finding the Fourth Proportional to 355,462.97, 490,491.52 and 228,310.79
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Solution
The fourth proportional to 355,462.97, 490,491.52 and 228,310.79 is: 315,038.46
Step by Step Solution
- Step 1: Write the proportion equation
355,462.97 : 490,491.52 = 228,310.79 : x - Step 2: Convert to fraction form
355,462.97/490,491.52 = 228,310.79/x - Step 3: Cross multiply
355,462.97x = 490,491.52 × 228,310.79 - Step 4: Simplify right side
355,462.97x = 111,984,503,396.27 - Step 5: Solve for x
x = 111,984,503,396.27/355,462.97 - Step 6: Final answer
x = 315,038.46
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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.