Finding the Fourth Proportional to 354,910.21, 489,777.20 and 227,586.31
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Solution
The fourth proportional to 354,910.21, 489,777.20 and 227,586.31 is: 314,069.82
Step by Step Solution
- Step 1: Write the proportion equation
354,910.21 : 489,777.20 = 227,586.31 : x - Step 2: Convert to fraction form
354,910.21/489,777.20 = 227,586.31/x - Step 3: Cross multiply
354,910.21x = 489,777.20 × 227,586.31 - Step 4: Simplify right side
354,910.21x = 111,466,584,161.21 - Step 5: Solve for x
x = 111,466,584,161.21/354,910.21 - Step 6: Final answer
x = 314,069.82
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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.