Finding the Fourth Proportional to 278,163.24, 417,322.62 and 91,305.96
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Solution
The fourth proportional to 278,163.24, 417,322.62 and 91,305.96 is: 136,984.46
Step by Step Solution
- Step 1: Write the proportion equation
278,163.24 : 417,322.62 = 91,305.96 : x - Step 2: Convert to fraction form
278,163.24/417,322.62 = 91,305.96/x - Step 3: Cross multiply
278,163.24x = 417,322.62 × 91,305.96 - Step 4: Simplify right side
278,163.24x = 38,104,042,448.82 - Step 5: Solve for x
x = 38,104,042,448.82/278,163.24 - Step 6: Final answer
x = 136,984.46
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.