Finding the Fourth Proportional to 286,186.08, 394,987.20 and 165,331.92
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Solution
The fourth proportional to 286,186.08, 394,987.20 and 165,331.92 is: 228,187.17
Step by Step Solution
- Step 1: Write the proportion equation
286,186.08 : 394,987.20 = 165,331.92 : x - Step 2: Convert to fraction form
286,186.08/394,987.20 = 165,331.92/x - Step 3: Cross multiply
286,186.08x = 394,987.20 × 165,331.92 - Step 4: Simplify right side
286,186.08x = 65,303,992,151.42 - Step 5: Solve for x
x = 65,303,992,151.42/286,186.08 - Step 6: Final answer
x = 228,187.17
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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.