Finding the Fourth Proportional to 201,776.80, 278,318.64 and 126,194.08
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Solution
The fourth proportional to 201,776.80, 278,318.64 and 126,194.08 is: 174,064.44
Step by Step Solution
- Step 1: Write the proportion equation
201,776.80 : 278,318.64 = 126,194.08 : x - Step 2: Convert to fraction form
201,776.80/278,318.64 = 126,194.08/x - Step 3: Cross multiply
201,776.80x = 278,318.64 × 126,194.08 - Step 4: Simplify right side
201,776.80x = 35,122,164,721.65 - Step 5: Solve for x
x = 35,122,164,721.65/201,776.80 - Step 6: Final answer
x = 174,064.44
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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.