Finding the Fourth Proportional to 372,399.13, 513,908.44 and 202,633.93
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Solution
The fourth proportional to 372,399.13, 513,908.44 and 202,633.93 is: 279,633.54
Step by Step Solution
- Step 1: Write the proportion equation
372,399.13 : 513,908.44 = 202,633.93 : x - Step 2: Convert to fraction form
372,399.13/513,908.44 = 202,633.93/x - Step 3: Cross multiply
372,399.13x = 513,908.44 × 202,633.93 - Step 4: Simplify right side
372,399.13x = 104,135,286,857.37 - Step 5: Solve for x
x = 104,135,286,857.37/372,399.13 - Step 6: Final answer
x = 279,633.54
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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.