Finding the Fourth Proportional to 354,900.89, 489,744.83 and 201,935.99
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Solution
The fourth proportional to 354,900.89, 489,744.83 and 201,935.99 is: 278,661.20
Step by Step Solution
- Step 1: Write the proportion equation
354,900.89 : 489,744.83 = 201,935.99 : x - Step 2: Convert to fraction form
354,900.89/489,744.83 = 201,935.99/x - Step 3: Cross multiply
354,900.89x = 489,744.83 × 201,935.99 - Step 4: Simplify right side
354,900.89x = 98,897,107,093.43 - Step 5: Solve for x
x = 98,897,107,093.43/354,900.89 - Step 6: Final answer
x = 278,661.20
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1.5x scale
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.