Finding the Fourth Proportional to 354,619.06, 489,403.29 and 201,705.09
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Solution
The fourth proportional to 354,619.06, 489,403.29 and 201,705.09 is: 278,369.50
Step by Step Solution
- Step 1: Write the proportion equation
354,619.06 : 489,403.29 = 201,705.09 : x - Step 2: Convert to fraction form
354,619.06/489,403.29 = 201,705.09/x - Step 3: Cross multiply
354,619.06x = 489,403.29 × 201,705.09 - Step 4: Simplify right side
354,619.06x = 98,715,133,009.58 - Step 5: Solve for x
x = 98,715,133,009.58/354,619.06 - Step 6: Final answer
x = 278,369.50
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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.