Finding the Fourth Proportional to 354,432.43, 489,129.02 and 201,477.03
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Solution
The fourth proportional to 354,432.43, 489,129.02 and 201,477.03 is: 278,045.27
Step by Step Solution
- Step 1: Write the proportion equation
354,432.43 : 489,129.02 = 201,477.03 : x - Step 2: Convert to fraction form
354,432.43/489,129.02 = 201,477.03/x - Step 3: Cross multiply
354,432.43x = 489,129.02 × 201,477.03 - Step 4: Simplify right side
354,432.43x = 98,548,262,236.41 - Step 5: Solve for x
x = 98,548,262,236.41/354,432.43 - Step 6: Final answer
x = 278,045.27
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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.