Finding the Fourth Proportional to 354,915.57, 489,764.30 and 201,949.23
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Solution
The fourth proportional to 354,915.57, 489,764.30 and 201,949.23 is: 278,679.02
Step by Step Solution
- Step 1: Write the proportion equation
354,915.57 : 489,764.30 = 201,949.23 : x - Step 2: Convert to fraction form
354,915.57/489,764.30 = 201,949.23/x - Step 3: Cross multiply
354,915.57x = 489,764.30 × 201,949.23 - Step 4: Simplify right side
354,915.57x = 98,907,522,256.74 - Step 5: Solve for x
x = 98,907,522,256.74/354,915.57 - Step 6: Final answer
x = 278,679.02
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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.