Finding the Fourth Proportional to 354,481.71, 489,100.62 and 201,507.81
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Solution
The fourth proportional to 354,481.71, 489,100.62 and 201,507.81 is: 278,032.95
Step by Step Solution
- Step 1: Write the proportion equation
354,481.71 : 489,100.62 = 201,507.81 : x - Step 2: Convert to fraction form
354,481.71/489,100.62 = 201,507.81/x - Step 3: Cross multiply
354,481.71x = 489,100.62 × 201,507.81 - Step 4: Simplify right side
354,481.71x = 98,557,594,805.84 - Step 5: Solve for x
x = 98,557,594,805.84/354,481.71 - Step 6: Final answer
x = 278,032.95
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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.