Finding the Fourth Proportional to 354,845.36, 489,669.36 and 201,869.12
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Solution
The fourth proportional to 354,845.36, 489,669.36 and 201,869.12 is: 278,569.58
Step by Step Solution
- Step 1: Write the proportion equation
354,845.36 : 489,669.36 = 201,869.12 : x - Step 2: Convert to fraction form
354,845.36/489,669.36 = 201,869.12/x - Step 3: Cross multiply
354,845.36x = 489,669.36 × 201,869.12 - Step 4: Simplify right side
354,845.36x = 98,849,122,794.16 - Step 5: Solve for x
x = 98,849,122,794.16/354,845.36 - Step 6: Final answer
x = 278,569.58
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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.