Finding the Fourth Proportional to 286,378.36, 395,178.94 and 165,527.44
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Solution
The fourth proportional to 286,378.36, 395,178.94 and 165,527.44 is: 228,414.46
Step by Step Solution
- Step 1: Write the proportion equation
286,378.36 : 395,178.94 = 165,527.44 : x - Step 2: Convert to fraction form
286,378.36/395,178.94 = 165,527.44/x - Step 3: Cross multiply
286,378.36x = 395,178.94 × 165,527.44 - Step 4: Simplify right side
286,378.36x = 65,412,958,280.11 - Step 5: Solve for x
x = 65,412,958,280.11/286,378.36 - Step 6: Final answer
x = 228,414.46
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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.