Finding the Fourth Proportional to 490,201.96, 676,463.96 and 272,409.90
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Solution
The fourth proportional to 490,201.96, 676,463.96 and 272,409.90 is: 375,917.47
Step by Step Solution
- Step 1: Write the proportion equation
490,201.96 : 676,463.96 = 272,409.90 : x - Step 2: Convert to fraction form
490,201.96/676,463.96 = 272,409.90/x - Step 3: Cross multiply
490,201.96x = 676,463.96 × 272,409.90 - Step 4: Simplify right side
490,201.96x = 184,275,479,697.20 - Step 5: Solve for x
x = 184,275,479,697.20/490,201.96 - Step 6: Final answer
x = 375,917.47
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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.