Finding the Fourth Proportional to 354,723.13, 489,528.73 and 201,783.49
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Solution
The fourth proportional to 354,723.13, 489,528.73 and 201,783.49 is: 278,467.36
Step by Step Solution
- Step 1: Write the proportion equation
354,723.13 : 489,528.73 = 201,783.49 : x - Step 2: Convert to fraction form
354,723.13/489,528.73 = 201,783.49/x - Step 3: Cross multiply
354,723.13x = 489,528.73 × 201,783.49 - Step 4: Simplify right side
354,723.13x = 98,778,814,623.08 - Step 5: Solve for x
x = 98,778,814,623.08/354,723.13 - Step 6: Final answer
x = 278,467.36
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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.