Finding the Fourth Proportional to 354,940.76, 489,811.68 and 201,975.56
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Solution
The fourth proportional to 354,940.76, 489,811.68 and 201,975.56 is: 278,722.53
Step by Step Solution
- Step 1: Write the proportion equation
354,940.76 : 489,811.68 = 201,975.56 : x - Step 2: Convert to fraction form
354,940.76/489,811.68 = 201,975.56/x - Step 3: Cross multiply
354,940.76x = 489,811.68 × 201,975.56 - Step 4: Simplify right side
354,940.76x = 98,929,988,362.54 - Step 5: Solve for x
x = 98,929,988,362.54/354,940.76 - Step 6: Final answer
x = 278,722.53
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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.