Finding the Fourth Proportional to 354,621.06, 489,406.05 and 201,707.09
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Solution
The fourth proportional to 354,621.06, 489,406.05 and 201,707.09 is: 278,372.27
Step by Step Solution
- Step 1: Write the proportion equation
354,621.06 : 489,406.05 = 201,707.09 : x - Step 2: Convert to fraction form
354,621.06/489,406.05 = 201,707.09/x - Step 3: Cross multiply
354,621.06x = 489,406.05 × 201,707.09 - Step 4: Simplify right side
354,621.06x = 98,716,670,173.89 - Step 5: Solve for x
x = 98,716,670,173.89/354,621.06 - Step 6: Final answer
x = 278,372.27
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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.