Finding the Fourth Proportional to 354,421.07, 489,083.28 and 201,439.07
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Solution
The fourth proportional to 354,421.07, 489,083.28 and 201,439.07 is: 277,975.80
Step by Step Solution
- Step 1: Write the proportion equation
354,421.07 : 489,083.28 = 201,439.07 : x - Step 2: Convert to fraction form
354,421.07/489,083.28 = 201,439.07/x - Step 3: Cross multiply
354,421.07x = 489,083.28 × 201,439.07 - Step 4: Simplify right side
354,421.07x = 98,520,478,630.33 - Step 5: Solve for x
x = 98,520,478,630.33/354,421.07 - Step 6: Final answer
x = 277,975.80
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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.