Finding the Fourth Proportional to 392,580.08, 541,760.60 and 213,732.08
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Solution
The fourth proportional to 392,580.08, 541,760.60 and 213,732.08 is: 294,950.32
Step by Step Solution
- Step 1: Write the proportion equation
392,580.08 : 541,760.60 = 213,732.08 : x - Step 2: Convert to fraction form
392,580.08/541,760.60 = 213,732.08/x - Step 3: Cross multiply
392,580.08x = 541,760.60 × 213,732.08 - Step 4: Simplify right side
392,580.08x = 115,791,619,900.05 - Step 5: Solve for x
x = 115,791,619,900.05/392,580.08 - Step 6: Final answer
x = 294,950.32
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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.