Finding the Fourth Proportional to 354,720.94, 489,529.58 and 201,786.08
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Solution
The fourth proportional to 354,720.94, 489,529.58 and 201,786.08 is: 278,473.14
Step by Step Solution
- Step 1: Write the proportion equation
354,720.94 : 489,529.58 = 201,786.08 : x - Step 2: Convert to fraction form
354,720.94/489,529.58 = 201,786.08/x - Step 3: Cross multiply
354,720.94x = 489,529.58 × 201,786.08 - Step 4: Simplify right side
354,720.94x = 98,780,254,992.25 - Step 5: Solve for x
x = 98,780,254,992.25/354,720.94 - Step 6: Final answer
x = 278,473.14
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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.