Finding the Fourth Proportional to 201,869.06, 278,579.61 and 109,987.92
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Solution
The fourth proportional to 201,869.06, 278,579.61 and 109,987.92 is: 151,783.50
Step by Step Solution
- Step 1: Write the proportion equation
201,869.06 : 278,579.61 = 109,987.92 : x - Step 2: Convert to fraction form
201,869.06/278,579.61 = 109,987.92/x - Step 3: Cross multiply
201,869.06x = 278,579.61 × 109,987.92 - Step 4: Simplify right side
201,869.06x = 30,640,391,858.31 - Step 5: Solve for x
x = 30,640,391,858.31/201,869.06 - Step 6: Final answer
x = 151,783.50
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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.