Finding the Fourth Proportional to 355,778.26, 490,985.61 and 194,633.31
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Solution
The fourth proportional to 355,778.26, 490,985.61 and 194,633.31 is: 268,600.32
Step by Step Solution
- Step 1: Write the proportion equation
355,778.26 : 490,985.61 = 194,633.31 : x - Step 2: Convert to fraction form
355,778.26/490,985.61 = 194,633.31/x - Step 3: Cross multiply
355,778.26x = 490,985.61 × 194,633.31 - Step 4: Simplify right side
355,778.26x = 95,562,154,436.67 - Step 5: Solve for x
x = 95,562,154,436.67/355,778.26 - Step 6: Final answer
x = 268,600.32
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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.