Finding the Fourth Proportional to 355,449.98, 490,519.86 and 194,305.08
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Solution
The fourth proportional to 355,449.98, 490,519.86 and 194,305.08 is: 268,140.40
Step by Step Solution
- Step 1: Write the proportion equation
355,449.98 : 490,519.86 = 194,305.08 : x - Step 2: Convert to fraction form
355,449.98/490,519.86 = 194,305.08/x - Step 3: Cross multiply
355,449.98x = 490,519.86 × 194,305.08 - Step 4: Simplify right side
355,449.98x = 95,310,500,638.89 - Step 5: Solve for x
x = 95,310,500,638.89/355,449.98 - Step 6: Final answer
x = 268,140.40
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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.