Finding the Fourth Proportional to 355,446.18, 490,368.86 and 248,079.06
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Solution
The fourth proportional to 355,446.18, 490,368.86 and 248,079.06 is: 342,246.59
Step by Step Solution
- Step 1: Write the proportion equation
355,446.18 : 490,368.86 = 248,079.06 : x - Step 2: Convert to fraction form
355,446.18/490,368.86 = 248,079.06/x - Step 3: Cross multiply
355,446.18x = 490,368.86 × 248,079.06 - Step 4: Simplify right side
355,446.18x = 121,650,243,375.75 - Step 5: Solve for x
x = 121,650,243,375.75/355,446.18 - Step 6: Final answer
x = 342,246.59
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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.